function makeid(length) {
   var result           = '';
   var characters       = 'abcdefghijklmnopqrstuvwxyz0123456789';
   var charactersLength = characters.length;
   for ( var i = 0; i < length; i++ ) {
      result += characters.charAt(Math.floor(Math.random() * charactersLength));
   }
   return result;
}

function openNext() {
    window.open('https://prnt.sc/' + makeid(6))
}

document.addEventListener('keydown', function(event) {
  if (event.code == 'KeyZ') {
    openNext()
  }
});