=>
'(0 1 4 9 16)'(0 1 4 9 16)'((1 0) (2 0) (2 1) (3 0) (3 1) (3 2))'((1 0) (2 0) (2 1) (3 0) (3 1) (3 2))
'(0 1 4 9 16)
'((1 0) (2 0) (2 1) (3 0) (3 1) (3 2))