function Main(input) {
    let src = input.replace("\n", "").split(",");
    let sum = (parseInt(src[0]) + parseInt(src[1])) + parseInt(src[2]);
    let avr = parseFloat(sum / 3.0).toFixed(1).toString();
    console.log("合計点:" + sum);
    console.log("平均点:" + avr);
}
Main(require("fs").readFileSync("/dev/stdin", "utf8"));