Task: Program Execution
Input (English): [[7, 86, 7], [-56, -74, -85], [-29, 45, 98, -72, -15, -97, -7, -66, -31], [-61, -91, -52, 27]]
Output (English): [-139, -34, -32, -45, -15, -97, -7, -66, -31]