16
13
1100000001110
1100000011100
1100000111000
1100001110000
1100011100000
1100111000000
1101110000000
1111110000000
1111111000000
1110011100000
1100001110000
1100000111000
1100000011000
1100000011100
1100000001110
1100000000111
