Task: Program Execution
Input (English): 1, 4, ['y', '3969', '3777', '1499', '7971', '9287', '2703', 'd', '5399', 'k', '1843', 'M', '4277', '6903', 'F', '4573', '3291', '6949', 'e', 'L', 'r', 'Z', 'H', 'k', 'B', '1779']
Output (English): 994177739693y