export { }
let lines = [];
const reader = require('readline').createInterface({
  input: process.stdin,
  output: process.stdout
});
reader.on('line', function (line) {
  lines.push(line);
});
reader.on('close', function () {

  const man: number = parseInt(lines[0])
  const woman: number = parseInt(lines[1])
  let surplus: number = 0

  if (woman > man) {
    console.log('Yes')
  } else {
    console.log('No')
  }

  if (woman === man + 1) {
    console.log('0')
  } else if (woman > man) {
    surplus = Math.abs(woman - man) - 1
    console.log(surplus)
  } else {
    surplus = Math.abs(woman - man) + 1
    console.log(surplus)
  }

});