Task: Program Execution
Input (English): 6437, c, r, e, i, 7535, d, 3553, 7839, I, 4305, J, B, E, 7231, 8693, 2665, 8817, 2603, E, Y, t, C, p
Output (English): 1, 6, 8, 9, 11, 15, 16, 17, 18, 19