public class Solution {

	public int getIndexByDay(String S) {
	    switch(S) {
	        case "Mon": return 0;
	        case "Tue": return 1;
	        case "Wed": return 2;
	        case "Thu": return 3;
	        case "Fri": return 4;
	        case "Sat": return 5;
	        case "Sun": return 6;
	    }
	    return -1;
	}

	public static String[] initArray() {
	    String[] arr = new String[7];
	    arr[0] = "Mon";
	    arr[1] = "Tue";
	    arr[2] = "Wed";
	    arr[3] = "Thu";
	    arr[4] = "Fri";
	    arr[5] = "Sat";
	    arr[6] = "Sun";
	    return arr;
	}

	public String solution(String S, int k) {
	    String[] arr = initArray();
	    int currentIndex = getIndexByDay(S);
	    int toAdd = k % 7;
	    int indexDayToBe = (currentIndex + toAdd) % 7;
	    return arr[indexDayToBe];
	}
}