Letters:

Cc, Ss, Oo, Qq, Gg, Dd, Rr, Nn, Mm, Ff, Ee, Vv, Ww, Zz, Uu, Yy, Kk, Ll

Numbers:

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20