Problem:
Score : 100 points

Problem Statement

Given is a string S representing the day of the week today.

S is SUN, MON, TUE, WED, THU, FRI, or SAT, for Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, and Saturday, respectively.

After how many days is the next Sunday (tomorrow or later)?

Constraints

S is SUN, MON, TUE, WED, THU, FRI, or SAT.

Input

Input is given from Standard Input in the following format:

S

Output

Print the number of days before the next Sunday.

Sample Input 1

SAT

Sample Output 1

1

It is Saturday today, and tomorrow will be Sunday.

Sample Input 2

SUN

Sample Output 2

7

It is Sunday today, and seven days later, it will be Sunday again.

Solution in C++14 (GCC 5.4.1) (judge verdict: Accepted)

/*Made by Shivam Solanki*/
#include<bits/stdc++.h>
using namespace std;
#define DEBUG(x) cout << '>' << #x << ':' << x << endl;
#define ll long long int
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<vll> vvl;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
typedef vector<vi> vvi;
typedef vector<bool> vb;
typedef vector<pii> vp;
typedef vector<pll> vpll;
typedef map<int,int> mii;
typedef map<ll,ll> mll;
typedef set<int> sii;
typedef set<ll> sll;
typedef priority_queue<int> pq;
typedef unordered_map<int,int> umii;
typedef unordered_map<ll,ll> umll;
#define rep(i,k,n) for (int i = k; i < n; ++i) 
#define repr(i,k,n) for (int i = n; i>=k; --i)
#define REP(i,k,n) for (int i = k; i <= n; ++i) 
#define REPR(i,k,n) for (int i = k; i >= n; --i)
#define repll(i,k,n) for (ll i = k; i < n; ++i) 
#define pb push_back
#define mp make_pair
#define gcd __gcd
#define F first
#define S second
#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
const int INF = 1e9+5;
const int MOD = 1e9+7;

void solve(){
    vector<pair<string,int>>days={mp("SUN",7),mp("SAT",1),mp("MON",6),mp("TUE",5),mp("WED",4),mp("THU",3),mp("FRI",2)};
    string x;
    cin>>x;
    rep(i,0,7){
        if(days[i].F==x){
            cout<<days[i].S;
            break;
        }
    }
}
    
int main(){
    // #ifndef ONLINE_JUDGE  
        // freopen("input.txt", "r", stdin); 
        // freopen("output.txt", "w", stdout); 
    // #endif 
    // fastio;
    int t=1;
    // cin>>t;
    while(t--)
        solve();
    return 0;
}