PROGRAMMING:Can triangle 1 be formed

Input the three sides of the triangle to judge whether it can form a triangle. If it can output yes, otherwise it will output No.
###Input format:
Input three integers directly in one line, with a space interval between the three integers, without any additional characters.
###Output format:
Output yes or no directly without any additional characters.
###Input example:
```in
4 5 6
```
###Output example:
```out
YES
```
###Input example:
```
2 2 4
```
###Output example:
```
NO
```






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