/set %c1  $+  $+ $mid(1,1,%nn) | /set %c2  $+  $+ $mid(2,1,%nn) | /set %c3  $+  $+  $mid(3,1,%nn) | /set %c4  $+  $+ $mid(4,1,%nn) | /set %c5  $+  $+ $mid(5,1,%nn) | /set %c6  $+  $+ $mid(6,1,%nn) | /set %c7  $+  $+ $mid(7,1,%nn) | /set %c8  $+  $+ $mid(8,1,%nn) | /set %c9  $+  $+ $mid(9,1,%nn) | 


/say   13,13.....0,0...................................3,3.....1,0
/say   13,13.13,5 %c1 13,13.8,8.....0,0.........................11,11.....3,3.3,5 %c9 3,3.1,0
/say   13,13.....8,8.8,5 %c2 8,8.4,4.....0,0...............7,7.....11,11.11,5 %c8 11,11.3,3.....1,0
/say   0,0.....8,8.....4,4.4,5 %c3 4,4.9,9.....0,0.....15,15.....7,7.7,5 %c7 7,7.11,11.....0,0.....1,0
/say   0,0..........4,4.....9,9.9,5 %c4 9,9.12,12.....15,15.15,5 %c6 15,15.7,7.....0,0..........1,0
/say   0,0...............9,9.....12,12.12,5 %c5 12,12.15,15.....0,0...............1,0
/say   0,0....................12,12.....0,0....................1,0
