function Main(input) {
  input = input.split(' ')
  var A = parseInt(input[0])
  var B = parseInt(input[1])

  if (A <= 8 && B <= 8) {
    console.log('Yay!')
  } else {
    console.log(':(')
  }
}

Main(require('fs').readFileSync('/dev/stdin', 'utf8'))
