import std.stdio;
import std.conv;
import std.string;
import std.bigint;

void main(){
  auto a = readln.chomp.to!long;
  auto b = readln.chomp.to!long;
  auto c = readln.chomp.to!long;
  for(long x = 1; x + a < b + c; x++){
    for(long y = 1; x + y + a < b + c; y++){
      if(solve(a, b, c, x, y)){
        writeln("Yes");
        return;
      }
    }
  }
  writeln("No");
}

bool solve(long a, long b, long c, long x, long y){
  long l = a + x + y;
  if(l >= b + c) return false;
  if(b >= c + l) return false;
  if(c >= b + l) return false;
  long s = l ^^ 2 + b ^^ 2 - c ^^ 2;
  long t = l ^^ 2 + c ^^ 2 - b ^^ 2;
  BigInt left = l * c ^^ 2 + l * y ^^ 2 - y * t;
  left *= (2 * b ^^ 2 * l - x * s) ^^ 2;
  left *= c ^^ 2;
  BigInt right = l * b ^^ 2 + l * x ^^ 2 - x * s;
  right *= (2 * c ^^ 2 * l - y * t) ^^ 2;
  right *= b ^^ 2;
  return left == right;
}