[Level 1] 2016년

class Solution {
    public String solution(int a, int b) {
        int[] days = new int[] {31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
        String[] s = new String[] {"FRI", "SAT", "SUN", "MON", "TUE", "WED", "THU"};
        int day = 0;

        for(int i=0; i<a-1; i++) { day += days[i]; }
        day += b;
        
        return s[(day-1)%7];
    }
}