function Main(inp) {
    var input = inp.split("\n");
    var s = input[0];
    var total = 700;
    for (var i = 0; i < 3; i++) {
        if (s[i] === 'o') {
            total += 100;
        }
    }
    console.log(total);
}

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