function main(input) {
  input = input.trim();
  const a = input.split(" ").map(Number);
	console.log(!(a[0]==a[1] && a[1]==a[2])
			 && (a[0]==a[1]|| a[0]==a[2] || a[1]==a[2])?"Yes":"No");
  
}
main(require('fs').readFileSync('/dev/stdin', 'utf8'));