function Main(input) {
  let data = input.split("\n").filter((a)=>{return a != ""});
  let myHigh = data.shift().split(" ")[0];
  data.push(myHigh);
  data.sort((a,b)=>{return parseInt(b) - parseInt(a)});
  let r = data.indexOf(myHigh) + 1;
  let o;
  switch (r % 10) {
    case 1:
        o = r + "st"
      break;
    case 2:
        o = r + "nd";
        break;
    case 3:
        o = r + "rd";
        break;
    default:
        o = r + "th";
  }
  console.log(o);
}


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