Task: Program Execution
Input (English): xXiZQhUTICFoSmnxUcyTifjYBECLgV, jCDiSmnxUcyTifjYBEvfjFHyAd
Output (English): b, c, e, f, g, h, i, j, l, m, n, o, q, s, t, u, v, x, y, z