function Main(input) {
	input = input.trim();
	input = input.trim().split("");
	//input = input.trim().split("\n");
	//input = input.trim().split(" ").map((a)=>Number(a));
	//input = input.trim().split("\n").map((a)=>Number(a));
  	var output = 700;
  for(var i = 0; i < input.length; i++){
      if(input[i] == "o"){
         output += 100;
         }
    }
  console.log(output);
}

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