PROGRAMMING:Unqualified ball

Xiao Ming helps his mother to inspect the unqualified balls. Generally, one of every four balls has abnormal weight. Please output the number of the ball with abnormal weight.
###Input format:
Enter four integers a, B, C, D separated by spaces (1 = < A, B, C, d < = 10000), representing the weight of the four balls a / B / C / D respectively
###Output format:
Output the number (A / B / C / D) and weight of the ball with abnormal weight, separated by a space
###Input example:
```in
2 2 3 2
```
###Output example:
```out
C 3
```






answer：If there is no answer, please comment