function main(s) {
  const t = "kadomatsu";
  let j = 0;
  for(let i=0; i<t.length; i++) {
    if(s[j] === t[i]) j++;
  }
  console.log( j === s.length ? "Yes" : "No"); 
}

main(require("fs").readFileSync("/dev/stdin", "utf8").trim().split("\n")[0]);