'use strict'
 
function main(s) {
  let n = s.split('');
  let options = 0;
  n.forEach(c=>{
    console.log(c);
    if(c === 'o'){
    	options += 1;
    }
  });
  let ans = 700 + options*100;
  console.log(ans);
}
 
main(require("fs").readFileSync("/dev/stdin", "utf8"));