Task: Program Execution
Input (English): 7, 21, ['u', 'a', 'y', 'x', 'c', '9641', 'H', '4139', '7703', '2815', 'K', 'e', '6169', 'x', 'L', '7359', 'x', 'Z', '6811', 'i', 'x', 'n', '797']
Output (English): xi1186Zx9537Lx9616eK518230779314H