I. Yet another A + B
time limit per test
0.25 seconds
memory limit per test
64 megabytes
input
standard input
output
standard output

You are given three numbers. Is there a way to replace variables A, B and C with these numbers so the equality A + B = C is correct?

Input

There are three numbers X1, X2 and X3 (1 ≤ Xi ≤ 10100), each on a separate line of input.

Output

Output either "YES", if there is a way to substitute variables A, B and C with given numbers so the equality is correct, or "NO" otherwise.

Examples
Input
1
2
3
Output
YES
Input
1
2
4
Output
YES
Input
1
3
5
Output
NO