题解 | #素数回文#

function check(num) {
  if (num < 2) return false;
  for (let i = 2; i <= num / i; i++) {
    if (num % i == 0) {
      return false;
    }
  }
  return true;
}
let i = readline();
let reverse = i.split("").reverse().join("");
let newWord = i + "" + reverse.slice(1);
if (check(Number(newWord))) {
  console.info("prime");
} else {
  console.info("noprime");
}