Task: Program Execution
Input (English): first: 31
second: 9
first: -30
second: 19
first: -32
second: 27
first: 79
second: -58
first: 20
second: 42
first: -52
second: 50
first: 90
second: -57
first: 31
second: -77
Output (English): first: -52
second: 50
first: -32
second: 27
first: -30
second: 19
first: 20
second: 42
first: 31
second: -77
first: 31
second: 9
first: 79
second: -58
first: 90
second: -57