function Main(input) {
	var arr = input.split('');
  	
  	const ramen = 700;
  	var count = 0;
  	if(arr[0] === "o"){ count++; }
  	if(arr[1] === "o"){ count++; }
	if(arr[2] === "o"){ count++; }
  		
  	var sum = 700 + count*100;
  	console.log(sum);
}
Main(require("fs").readFileSync("/dev/stdin", "utf8"));