var input = require("fs").readFileSync("/dev/stdin", "utf8");

var S = input;
var weekMap = {
    SUN: 7,
    MON: 6,
    TUE: 5,
    WED: 4,
    THU: 3,
    FRI: 2,
    SAT: 1,
};

var result = weekMap[S];
console.log(result);
