#include <bits/stdc++.h>

using namespace std;
typedef long long ll;

#define FOR(i, a, b) for (ll i = a; i <= (ll)(b); i++)

int main()
{
  cin.tie(0);
  ios_base::sync_with_stdio(false);

  ll v, t, p;
  cin >> v >> t >> p;

  ll a = 0, i = 0,va=0,vmax;
  vmax=(p+1)*v;

  if (v < t)
  {
    for (;;)
    {
      a++;
      i++;
      if (i % t == 1)
        a--;
      if (p > 0 && a == v)
      {
        p--;
        cout << a << " " << p << endl;
        a = 0;
      }
      if (a == v)
        break;
    }
  }
  else
  {
    i=1;
    for (;;)
    {
        a+=t-1;
        i+=t;

      if(a>vmax)
      {
        va=a-vmax;
        i-=va+1;
        a=vmax;
        break;
      }  

      if (a == vmax)
        break;
    }
  }

  cout << i<< endl;

  return 0;
}