declare function require(x: string): any;

const input: string = require('fs').readFileSync('/dev/stdin', 'utf8')

// const input: string = require('fs').readFileSync('./input.txt', 'utf8')


const [a, b, c] = input.split(" ").map(num => parseInt(num, 10)).sort()

if (a + b === c) {
  console.log("Yes")
}
else {
  console.log("No")
}