Task: Program Execution
Input (English): [[-57, 89, -25, 69], [-9, -94], [-37, -193, 51], [-16, 76, 65, 68, -171], [-193, 36, -158, -110, -65], [-157, -6, -85, -142, -177], [10, -18, -174, -16, -113, 21]]
Output (English): [89, -9, 51, 76, 36, -6, 21]