Codeforces Petr and Book

#include<bits/stdc++.h>

using namespace std;

#define fast ios_base::sync_with_stdio(0)
#define bfast cin.tie(0)
#define outs(x) cout << x << " "
#define outn(x) cout << x << "\n"
#define sf scanf
#define pf printf
#define nl puts("")
#define psb push_back
#define mset(c,v) memset(c , v , sizeof c)
#define loop0(n) for(int i=0; i<n; i++)
#define loop1(n) for(int i=1; i<=n; i++)
#define mpair(x , y) make_pair(x , y)
#define all(x) x.begin(), x.end()
#define pi acos(-1.0)
#define psb push_back

typedef unsigned long long ull;
typedef long long LL;
typedef vector<int>vii;
typedef vector<LL>vll;
typedef vector<string>vs;
typedef map<int, int>mpii;
typedef map<string, int>mpsi;
typedef map<char, int>mpci;
typedef map<LL, LL>mpll;

const int mod = 1000007;
const int high = 102;

int main()
{
    fast;
    int pages;
    int days[8] , i;
    while(cin >> pages)
    {
        for(i=1; i<=7; i++)
        {
            cin >> days[i];
        }

        int sum=0;

        i = 0;

        while(true)
        {
            i++;

            if(i == 8) i = 1;

            sum += days[i];

            if(sum >= pages)
            {
                break;
            }
        }

        cout << i << "\n";
    }

    return 0;
}