Task: Program Execution
Input (English): zisXMBtGsLQYJnfeySJlzKPMTgEqha, mpzriEHxbYJnfeySJlzKPMTlRGTXgtSwuB
Output (English): b, e, f, g, h, i, j, k, l, m, n, p, r, s, t, u, w, x, y, z