1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 11 + 1 =
2 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 11 + 1 =
3 + 1 + 1 + 1 + 1 + 1 + 1 + 11 + 1 =
4 + 1 + 1 + 1 + 1 + 1 + 11 + 1 =
5 + 1 + 1 + 1 + 1 + 11 + 1 =
6 + 1 + 1 + 1 + 11 + 1 =
7 + 1 + 1 + 11 + 1 =
8 + 1 + 11 + 1 =
9 + 11 + 1 =
20 + 1 = 21