Task: Program Execution
Input (English): 1, 12, ['3053', 'u', 'f', '2451', 'm', '5259', 'U', '2509', 'B', 'n', '3343', '2663', '4233', '2101', '5289', 'V', '3593']
Output (English): 3053uf2451m5259U2509Bn33432663