20
19
0000000111111100000
0000111111111111000
0001111000000111100
0011100000000001110
0111000000000000110
0110000000000000011
0110000000000000000
1100000000000000000
1100000000000000000
1100000000000000000
1100000000011111111
1100000000011111111
1100000000000000011
0110000000000000011
0110000000000000011
0111000000000000011
0011100000000000111
0001111000000011110
0000011111111111100
0000000111111100000
