Task: Program Execution
Input (English): E, 7, 0, 4, U, j
Output (English): [['E', '7', '0', '4', 'U'], ['E', '7', '0', '4', 'j'], ['E', '7', '0', 'U', 'j'], ['E', '7', '4', 'U', 'j'], ['E', '0', '4', 'U', 'j'], ['7', '0', '4', 'U', 'j']]