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d:1350
f:{(x*x) + (3*x) + (2*x*y) + y + (y*y)}
w:~2!(+/2\{+/(d;x*x;3*x;2*x*y;y;y*y)}.)''(!50),/:\:!50
m:w*{1 1~x}''(!50),/:\:!50
-1+|/|/{~x . 31 39}{w*(x+x>0)|(+-1_'0,'+x)|(+1_'(+x),'0)|(1_'x,'0)|(0,'-1_'x)}/m
+/+/0<50{w*(x+x>0)|(+-1_'0,'+x)|(+1_'(+x),'0)|(1_'x,'0)|(0,'-1_'x)}/m
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