1, 1, 10, 11, 11100, 111, 1111000, 1111, 111110000, 11111, 11111100000, 111111, 1111111000000, 1111111, 111111110000000, 11111111, 11111111100000000, 111111111, 1111111111000000000, 1111111111, 111111111110000000000, 11111111111, 11111111111100000000000