Task: Program Execution
Input (English): Z, 177, 7735, W, 4939, 4213, 4197, X, 451, U, 8305, 9851, 471, 9135, 5673, Q, 8659, W, 8325, s, o, 7069, 2657, O
Output (English): Z, W, X, U, Q, W, s, o, O, 177, 7735, 4939, 4213, 4197, 451, 8305, 9851, 471, 9135, 5673, 8659, 8325, 7069, 2657