#include "bits/stdc++.h" using namespace std; typedef long long ll; const int INF = (1<<30); const ll INFLL = (1ll<<60); const ll MOD = (ll)(1e9+7); #define l_ength size void mul_mod(ll& a, ll b){ a *= b; a %= MOD; } void add_mod(ll& a, ll b){ a = (a> l >> r; cin >> n; --l; bs = r/n - l/n; cout << bs << endl; r %= n; l %= n; for(i=1; i=i){ ++ans; } if(l>=i){ --ans; } cout << ans << endl; } return 0; }