function Main (input) {
    var line = input.split("\n");
    var L = +line[0];
    var M = +line[1];
    var N = +line[2];

    rapt(L,M,N);
}

function rapt(L,M,N) {
  M = M + Math.floor(N / 25);
  N = N % 25 ;
  L = L + Math.floor(M / 4);
  M = M % 4 ;
  L = L % 10;

  console.log(L + M + N);
}

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