function Main(input) {
  const data = input.split(" ")
  let a = Number(data[0]), b = Number(data[1])
  for (a; a <= b; a++) {
    if (a % 3 === 0 || String(a).match(/3/)) console.log(a)
  }
}
Main(require("fs").readFileSync("/dev/stdin", "utf8"))