function solve (...params) {

  	let arr = params[0];
  	let msg = arr.shift();

  	for (let i in arr) {
     	let temp = arr[i].toString().split("|");
      	if (temp[0] == "ChangeAll") {
          	let change = temp[1];
          	let to = temp[2];
         	msg = msg.toString().replace(new RegExp(`${change}`, "g"), `${to}`);
        } else if (temp[0] == "Insert") {
         	let index = temp[1];
          	let character = temp[2];
            if (index > msg.length) {
                  index = msg.length;
            }
          	msg = msg.toString().substr(0, index) + character + msg.toString().substr(index);
        } else if (temp[0] == "Move") {
         	let toIndexMove = temp[1];
          	if (toIndexMove > msg.length) {
             	continue;
            }
          	msg = msg.toString().substr(toIndexMove) + msg.toString().substr(0, toIndexMove);
        } else if (temp[0] == "Decode") {
         	console.log(`The decrypted message is: ${msg}`);
          	break;
        }
    }


}