Task: Program Execution
Input (English): first: 24
second: 59
first: -54
second: 88
first: 21
second: -36
first: 4
second: 72
first: 7
second: -20
Output (English): first: -54
second: 88
first: 4
second: 72
first: 7
second: -20
first: 21
second: -36
first: 24
second: 59