exch2_oi(1,12)=0

       exch2_oi(2,12)=0

       exch2_oi(3,12)=32

       exch2_oi(4,12)=-32

       exch2_oi(1,2)=33

       exch2_oi(2,2)=33

       exch2_oi(3,2)=0

       exch2_oi(4,2)=32

       exch2_oi(5,2)=-32

       exch2_oi(1,3)=0

       exch2_oi(2,3)=33

       exch2_oi(3,3)=33

       exch2_oi(4,3)=32

       exch2_oi(5,3)=-32

       exch2_oi(1,4)=0

       exch2_oi(2,4)=0

       exch2_oi(3,4)=32

       exch2_oi(4,4)=-32

       exch2_oi(1,5)=0

       exch2_oi(2,5)=0

       exch2_oi(3,5)=32

       exch2_oi(4,5)=-32

       exch2_oi(1,1)=0

       exch2_oi(1,6)=33

       exch2_oi(2,6)=33

       exch2_oi(3,6)=0

       exch2_oi(4,6)=32

       exch2_oi(5,6)=-32

       exch2_oi(1,7)=0

       exch2_oi(2,7)=33

       exch2_oi(3,7)=33

       exch2_oi(2,1)=0

       exch2_oi(4,7)=32

       exch2_oi(5,7)=-32

       exch2_oi(1,8)=0

       exch2_oi(2,8)=0

       exch2_oi(3,8)=32

       exch2_oi(4,8)=-32

       exch2_oi(1,9)=0

       exch2_oi(3,1)=32

       exch2_oi(2,9)=0

       exch2_oi(3,9)=32

       exch2_oi(4,9)=-32

       exch2_oi(1,10)=33

       exch2_oi(2,10)=33

       exch2_oi(3,10)=0

       exch2_oi(4,10)=32

       exch2_oi(5,10)=-32

       exch2_oi(4,1)=-32

       exch2_oi(1,11)=0

       exch2_oi(2,11)=33

       exch2_oi(3,11)=33

       exch2_oi(4,11)=32

       exch2_oi(5,11)=-32

       INTEGER exch2_oi(MAX_NEIGHBOURS,NTILES)

     &        exch2_oi,exch2_oj,                  

       exch2_oi(1,127)=0

       exch2_oi(2,127)=0

       exch2_oi(3,127)=0

       exch2_oi(1,128)=0

       exch2_oi(2,128)=0

       exch2_oi(2,11)=0

       exch2_oi(3,128)=0

       exch2_oi(4,128)=0

       exch2_oi(1,129)=0

       exch2_oi(2,129)=0

       exch2_oi(3,129)=0

       exch2_oi(4,129)=0

       exch2_oi(1,130)=0

       exch2_oi(3,11)=0

       exch2_oi(2,130)=0

       exch2_oi(3,130)=32

       exch2_oi(4,130)=0

       exch2_oi(1,131)=0

       exch2_oi(2,131)=0

       exch2_oi(3,131)=0

       exch2_oi(4,131)=-32

       exch2_oi(1,132)=0

       exch2_oi(4,11)=0

       exch2_oi(2,132)=0

       exch2_oi(3,132)=0

       exch2_oi(4,132)=0

       exch2_oi(1,133)=0

       exch2_oi(2,133)=0

       exch2_oi(3,133)=0

       exch2_oi(4,133)=0

       exch2_oi(1,134)=0

       exch2_oi(2,134)=0

       exch2_oi(3,134)=32

       exch2_oi(4,134)=0

       exch2_oi(1,135)=0

       exch2_oi(2,135)=0

       exch2_oi(3,135)=0

       exch2_oi(4,135)=-32

       exch2_oi(1,136)=0

       exch2_oi(2,136)=0

       exch2_oi(3,136)=0

       exch2_oi(1,12)=0

       exch2_oi(4,136)=0

       exch2_oi(1,137)=0

       exch2_oi(2,137)=0

       exch2_oi(3,137)=0

       exch2_oi(1,138)=0

       exch2_oi(2,138)=0

       exch2_oi(3,138)=32

       exch2_oi(2,12)=0

       exch2_oi(4,138)=0

       exch2_oi(1,139)=0

       exch2_oi(2,139)=0

       exch2_oi(3,139)=0

       exch2_oi(4,139)=-32

       exch2_oi(1,140)=0

       exch2_oi(2,140)=0

       exch2_oi(3,12)=32

       exch2_oi(3,140)=0

       exch2_oi(1,141)=0

       exch2_oi(2,141)=0

       exch2_oi(3,141)=32

       exch2_oi(1,142)=33

       exch2_oi(2,142)=33

       exch2_oi(3,142)=0

       exch2_oi(4,142)=0

       exch2_oi(4,12)=0

       exch2_oi(5,142)=-32

       exch2_oi(1,143)=33

       exch2_oi(2,143)=33

       exch2_oi(3,143)=0

       exch2_oi(4,143)=0

       exch2_oi(1,144)=33

       exch2_oi(2,144)=33

       exch2_oi(3,144)=0

       exch2_oi(4,144)=32

       exch2_oi(1,145)=0

       exch2_oi(2,145)=33

       exch2_oi(3,145)=33

       exch2_oi(4,145)=0

       exch2_oi(5,145)=-32

       exch2_oi(1,146)=0

       exch2_oi(2,146)=33

       exch2_oi(3,146)=33

       exch2_oi(4,146)=0

       exch2_oi(1,13)=0

       exch2_oi(5,146)=0

       exch2_oi(1,147)=0

       exch2_oi(2,147)=33

       exch2_oi(3,147)=33

       exch2_oi(4,147)=0

       exch2_oi(5,147)=0

       exch2_oi(1,148)=0

       exch2_oi(2,13)=0

       exch2_oi(2,148)=33

       exch2_oi(3,148)=33

       exch2_oi(4,148)=32

       exch2_oi(5,148)=0

       exch2_oi(1,149)=0

       exch2_oi(2,149)=0

       exch2_oi(3,149)=0

       exch2_oi(4,149)=-32

       exch2_oi(3,13)=0

       exch2_oi(1,150)=0

       exch2_oi(2,150)=0

       exch2_oi(3,150)=0

       exch2_oi(4,150)=0

       exch2_oi(1,151)=0

       exch2_oi(2,151)=0

       exch2_oi(3,151)=0

       exch2_oi(4,151)=0

       exch2_oi(1,152)=0

       exch2_oi(2,152)=0

       exch2_oi(3,152)=32

       exch2_oi(4,152)=0

       exch2_oi(1,153)=0

       exch2_oi(2,153)=0

       exch2_oi(3,153)=0

       exch2_oi(4,153)=-32

       exch2_oi(1,154)=0

       exch2_oi(1,14)=0

       exch2_oi(2,154)=0

       exch2_oi(3,154)=0

       exch2_oi(4,154)=0

       exch2_oi(1,155)=0

       exch2_oi(2,155)=0

       exch2_oi(3,155)=0

       exch2_oi(4,155)=0

       exch2_oi(1,156)=0

       exch2_oi(2,14)=0

       exch2_oi(2,156)=0

       exch2_oi(3,156)=32

       exch2_oi(4,156)=0

       exch2_oi(1,157)=0

       exch2_oi(2,157)=0

       exch2_oi(3,157)=0

       exch2_oi(4,157)=-32

       exch2_oi(3,14)=0

       exch2_oi(1,158)=0

       exch2_oi(2,158)=0

       exch2_oi(3,158)=0

       exch2_oi(4,158)=0

       exch2_oi(1,159)=0

       exch2_oi(2,159)=0

       exch2_oi(3,159)=0

       exch2_oi(4,159)=0

       exch2_oi(4,14)=0

       exch2_oi(1,160)=0

       exch2_oi(2,160)=0

       exch2_oi(3,160)=32

       exch2_oi(4,160)=0

       exch2_oi(1,161)=0

       exch2_oi(2,161)=0

       exch2_oi(3,161)=0

       exch2_oi(4,161)=-32

       exch2_oi(1,162)=0

       exch2_oi(2,162)=0

       exch2_oi(3,162)=0

       exch2_oi(4,162)=0

       exch2_oi(1,163)=0

       exch2_oi(2,163)=0

       exch2_oi(3,163)=0

       exch2_oi(4,163)=0

       exch2_oi(1,164)=0

       exch2_oi(1,15)=0

       exch2_oi(2,164)=0

       exch2_oi(3,164)=32

       exch2_oi(4,164)=0

       exch2_oi(1,165)=0

       exch2_oi(2,165)=0

       exch2_oi(3,165)=0

       exch2_oi(4,165)=-32

       exch2_oi(1,166)=0

       exch2_oi(2,15)=0

       exch2_oi(2,166)=0

       exch2_oi(3,166)=0

       exch2_oi(4,166)=0

       exch2_oi(1,167)=0

       exch2_oi(2,167)=0

       exch2_oi(3,167)=0

       exch2_oi(4,167)=0

       exch2_oi(3,15)=0

       exch2_oi(1,168)=0

       exch2_oi(2,168)=0

       exch2_oi(3,168)=32

       exch2_oi(4,168)=0

       exch2_oi(1,169)=0

       exch2_oi(2,169)=0

       exch2_oi(3,169)=0

       exch2_oi(4,169)=-32

       exch2_oi(4,15)=0

       exch2_oi(1,170)=0

       exch2_oi(2,170)=0

       exch2_oi(3,170)=0

       exch2_oi(4,170)=0

       exch2_oi(1,171)=0

       exch2_oi(2,171)=0

       exch2_oi(3,171)=0

       exch2_oi(4,171)=0

       exch2_oi(1,172)=0

       exch2_oi(2,172)=0

       exch2_oi(3,172)=32

       exch2_oi(4,172)=0

       exch2_oi(1,173)=0

       exch2_oi(2,173)=0

       exch2_oi(3,173)=0

       exch2_oi(4,173)=-32

       exch2_oi(1,174)=0

       exch2_oi(1,16)=0

       exch2_oi(2,174)=0

       exch2_oi(3,174)=0

       exch2_oi(4,174)=0

       exch2_oi(1,175)=0

       exch2_oi(2,175)=0

       exch2_oi(3,175)=0

       exch2_oi(4,175)=0

       exch2_oi(1,176)=0

       exch2_oi(2,16)=32

       exch2_oi(2,176)=0

       exch2_oi(3,176)=32

       exch2_oi(4,176)=0

       exch2_oi(3,16)=0

       exch2_oi(1,17)=0

       exch2_oi(2,17)=0

       exch2_oi(3,17)=0

       exch2_oi(4,17)=-32

       exch2_oi(1,18)=0

       exch2_oi(2,18)=0

       exch2_oi(3,18)=0

       exch2_oi(4,18)=0

       exch2_oi(1,19)=0

       exch2_oi(2,19)=0

       exch2_oi(1,20)=0

       exch2_oi(2,20)=0

       exch2_oi(3,20)=0

       exch2_oi(4,20)=-32

       exch2_oi(1,21)=0

       exch2_oi(2,21)=0

       exch2_oi(3,21)=0

       exch2_oi(1,22)=0

       exch2_oi(2,22)=32

       exch2_oi(1,23)=0

       exch2_oi(2,23)=0

       exch2_oi(3,23)=0

       exch2_oi(4,23)=-32

       exch2_oi(1,24)=0

       exch2_oi(2,24)=0

       exch2_oi(3,24)=0

       exch2_oi(4,24)=0

       exch2_oi(1,25)=0

       exch2_oi(2,25)=0

       exch2_oi(3,25)=0

       exch2_oi(1,26)=0

       exch2_oi(2,26)=0

       exch2_oi(1,1)=0

       exch2_oi(3,26)=32

       exch2_oi(4,26)=0

       exch2_oi(1,27)=33

       exch2_oi(2,27)=33

       exch2_oi(3,27)=0

       exch2_oi(4,27)=0

       exch2_oi(5,27)=-32

       exch2_oi(2,1)=0

       exch2_oi(1,28)=33

       exch2_oi(2,28)=33

       exch2_oi(3,28)=0

       exch2_oi(4,28)=0