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3

Time limit:
2.0s

Memory limit:
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You are given three positive integers, , such that . Determine whether a triangle of non-zero area can be formed with , , and as side lengths.

#### Input Specification

The input consists of a single line with integers separated by spaces.

#### Output Specification

Output on a single line, `yes`

if a valid triangle can be formed.

If a valid triangle can not be formed, output `no`

.

**Note**: an invalid triangle in this case is one that does not satisfy the strict triangle inequality.

#### Sample Input 1

`1 2 3`

#### Sample Output 1

`no`

#### Sample Input 2

`1 2 2`

#### Sample Output 2

`yes`

## Comments