16
15
111000000000111
111100000001111
111100000001111
111100000001111
110110000011011
110110000011011
110110000011011
110011000110011
110011000110011
110011000110011
110001101100011
110001101100011
110001101100011
110000111000011
110000111000011
110000111000011
