Task: Program Execution
Input (English): eoCcgSLXCcwEUBHIbOQGvyMAEBFJPzKwXFAIhHR, aivTeacSmBztBHIbOQGvyMAEBFJgOUEtYuMQqtJkS
Output (English): a, b, c, e, f, g, h, i, j, k, m, o, q, s, t, u, v, y, z