(stdin => {
  // Define Function
  const less = (a, b) => a < b

  const getA = (pred1, pred2) => {
    return (pred1 && pred2)
      ? `Yes`
      : `No`
  }
  // Declare Variable
  const inputs = stdin.toString().trim().split('\n')
  const Z = inputs[0].split(' ')
  const A = parseInt(Z[0], 10)
  const B = parseInt(Z[1], 10)
  const C = parseInt(Z[2], 10)

  console.log(getA(less(A, B), less(B, C)))

  // console.log(getA(more(A, B), more(B, C)))
})(require('fs').readFileSync('/dev/stdin', 'utf8'))

