Task: Program Execution
Input (English): 4775, 2837, l, 5187, 9259, L, 6423, 183, i, q, r, U, 7415, c, 883, x
Output (English): 4775, 2837, 12, 5187, 9259, 12, 6423, 183, 9, 17, 18, 21, 7415, 3, 883, 24