Task: Program Execution
Input (English): [[68, -131, -177, -46], [-158, -23, 11, -92, -143, -55], [82, 71, -77], [-13, -42], [-179, 15, -172, 20, -29, 36, -66], [-68, 25, -17]]
Output (English): [68, 11, 82, -13, 36, 25]