PROGRAMMING:Triangle judgment
Input three sides to judge whether a triangle can be formed.
###Input format:
Input 1 group of data, each group of three integers a, B, C. when a, B, C are all 0, the input ends (this group of data does not need to be output).
###Output format:
If a, B, C can form a triangle and output yes, otherwise output No.
###Input example:
```in
3 4 5
```
###Output example:
```out
YES
```
answer：If there is no answer, please comment
###Input format:
Input 1 group of data, each group of three integers a, B, C. when a, B, C are all 0, the input ends (this group of data does not need to be output).
###Output format:
If a, B, C can form a triangle and output yes, otherwise output No.
###Input example:
```in
3 4 5
```
###Output example:
```out
YES
```
answer：If there is no answer, please comment