var input = require("fs").readFileSync("input.txt").toString().replace(/\n/g, "").replace(/\r/g, "");
var password = [];
var i = 0;
while(password.filter((a)=>(a)).length < 8){
  var md5sum = require("crypto").createHash("md5");
  md5sum.update(input + i);
  var hash = md5sum.digest("hex");
  if(hash.slice(0, 5) == "00000"){
    var position = parseInt(hash[5]);
    if(!password[position] && position <= 7){
      password[position] = hash[6];
      console.log("FOUND", i, password.length, position, hash);
    }
  }
  i++;
  if(i%100000 == 0){
    console.log(i);
  }
}
console.log(password.join(""));