<filename>solutions/beecrowd/1026/1026.py
import sys

for line in sys.stdin:
    a, b = map(int, line.split())
    print(a ^ b)

<filename>solutions/beecrowd/1026/1026.py
import sys

for line in sys.stdin:
    a, b = map(int, line.split())
    print(a ^ b)
