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setputs j"-1 -1 time {set i0 -21 time {puts [expr1 [incr-1 -1 i]|$j?"$i0 1 $j":""]}0 -1 31 incr0 j}1 1 31"
Try it online!Try it online!
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set j -1 time {set i -2 time {puts [expr [incr i]|$j?"$i $j":""]} 3 incr j} 3
Try it online!
puts "-1 -1 0 -1 1 -1 -1 0 1 0 -1 1 0 1 1 1"
