Task: Program Execution
Input (English): 7, ['2221', 'R', '4023', '3845', 'L', '8447', '5675', '29', 'L', 'z', '5537', '749', '1545', 'y', 'h', '3043', 'z', 'b', 'i', '4431']
Output (English): 29, L, z, 5537, 749, 1545, y, h, 3043, z, b, i, 4431