Task: Program Execution
Input (English): hhrzPTYLYxkYuFkmKHkMrdf, XleNjGUCqvLyHYxkYuFkmKHkMrrIEIxz
Output (English): c, e, f, g, h, i, j, k, l, m, n, q, r, u, v, x, y, z