Task: Program Execution
Input (English): ztMFNycUHQaYdKGVSEXYLWSbJQyUgiuvNd, nnNbfVnXHQaYdKGVSEXYLpr
Output (English): a, b, c, d, e, f, g, h, i, j, k, l, m, n, q, s, t, u, v, w, x, y, z