po

$sig      = [
601=>[0,0],   602=>[0,0], 603=>[0,0],
501=>[0,0,0,0], 502=>[0,0,0,0],
401=>[0,0,0,0], 402=>[0,0,0,0],
301=>[0,0,0,0], 302=>[0,0,0,0],
201=>[0,0,0,0], 202=>[0,0,0,0],
101=>[0],   102=>[0,0]
];

$position = [
601=>[601, 101],      602=>[602, 102],      603=>[603, 103],
501=>[501, 101, 502], 502=>[502, 102, 503],
401=>[401, 101, 402], 402=>[402, 102, 403],
301=>[301, 101, 302], 302=>[302, 102, 303],
201=>[201, 101, 202], 202=>[202, 102, 203],
101=>[101, 102],      102=>[102, 103]
];