Task: Program Execution
Input (English): 5415 o t 6479 W q 767 3149 a 153 8157 1183 q 3647 3781 2663 7079 X 3843 J 6355 x 5289 x 3229 6847 9881 c
Output (English): o, t, W, q, a, q, X, J, x, x, c