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96A.cpp
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96A.cpp
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// Jai shree ram
// Author - Ajaybansal
#include <bits/stdc++.h>
using namespace std;
#define vi vector<int>
#define vvi vector<vector<int>>
#define pi pair<int, int>
#define ppb pop_back
#define pf push_front
#define ppf pop_front
#define all(x) (x.begin().x.end())
#define for(i, n) for (int i = 0; i < n; i++)
#define endl "\n"
#define ff first
#define ss second
#define Yes cout << "YES" << endl
#define No cout << "NO" << endl
#define int long long
void fast()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cout.tie(NULL);
}
signed solve()
{
fast();
string s;
cin >> s;
int n, sum = 1, flag = 0;
n = s.size();
for (int i = 1; i < n; i++)
{
if (s[i - 1] != s[i])
{
sum = 1;
}
else
{
sum += 1;
}
if (sum >= 7)
{
cout << "YES" << endl;
return 0;
}
}
if (sum<7)
{
cout << "NO" << endl;
return 0;
}
}
signed main()
{
solve();
return 0;
}