20
16
1100000000000011
1100000000000011
1100000000000011
1100000000000011
1100000000000011
1100000000000011
1100000000000011
1100000000000011
1100000000000011
1100000000000011
1100000000000011
1100000000000011
1100000000000011
1100000000000011
1100000000000011
0110000000000110
0110000000000110
0011100000011100
0001111111111000
0000111111100000
