Sunday, September 10, 2017

96A. Football

/***

            Bismillahir Rahmanir Rahim
            Read the name of Allah, who created you!!!
            Author : Shah Newaj Rabbi Shishir
            Department of CSE, City University, Bangladesh.

***/

#include <bits/stdc++.h>
using namespace std;

#define sf scanf
#define pf printf
#define scase sf ("%d",&tc)
#define sn sf ("%d",&n)
#define whilecase while (tc--)
#define eof while (cin >> n)
#define forloop for (pos=1; pos<=tc; pos++)
#define arrayloop (i=0; i<n; i++)
#define cinstr cin >> str
#define getstr getline (cin,str)
#define pcase pf ("Case %d: ",pos)
#define pb push_back
#define in insert
#define llu unsigned long long
#define lld long long
#define U unsigned int

int main (void)
{
    /*freopen ("input.txt","r",stdin);
    freopen ("output.txt","w",stdout);*/
    int len,i,j,k;
    string str;
    bool val;

    while (cin >> str)
    {
        len = str.size();
        val = false;

        for (i=0; i<len; i++)
        {
            k = 0;

            for (j=i+1; j<len; j++)
            {
                if (str[i] == str[j])
                    k++;
                else
                    break;
            }

            if (k >= 6)
            {
                val = true;
                break;
            }
        }

        if (val)
            cout << "YES\n";
        else
            cout << "NO\n";
    }

    return 0;
}

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