Task: Program Execution
Input (English): first: 50
second: 17
first: 77
second: -21
first: -75
second: 28
first: 37
second: -60
first: 3
second: 28
first: -28
second: 48
Output (English): first: -75
second: 28
first: -28
second: 48
first: 3
second: 28
first: 37
second: -60
first: 50
second: 17
first: 77
second: -21