ABC302

a, b = map(int, input().split())
print((a+b-1)//b)

#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < (n); ++i)

using namespace std;

int di[] = {-1, -1, -1, 0, 0, 1, 1, 1};
int dj[] = {-1, 0, 1, -1, 1, -1, 0, 1};

int main() {
    int h, w;
    cin >> h >> w;
    
    vector<string> s(h);
    rep(i, h) cin >> s[i];
    
    string T = "snuke";
    rep(si, h)rep(sj, w) {
        rep(v, 8) {
            int i = si, j = sj;
            rep(k, 5) {
                if (i < 0 or j < 0 or i >= h or j >= w) break;
                if (s[i][j] != T[k]) break;
                if (k == 4) {
                    i = si; j = sj;
                    rep(nk, 5) {
                        cout << i+1 << ' ' << j+1 << '\n';
                        i += di[v]; j += dj[v];
                    }
                    return 0;
                }
                i += di[v]; j += dj[v];
            }
        }
    }
    
    return 0;
}