#include "bits/stdc++.h"
#define REP(i,n,N) for(ll i=(n); i<(N); i++)
#define RREP(i,n,N) for(ll i=(N-1); i>=n; i--)
#define CK(n,a,b) ((a)<=(n)&&(n)<(b))
#define ALL(v) (v).begin(),(v).end()
#define p(s) cout<<(s)<<endl
#define p2(a,b) cout<<(a)<<" "<<(b)<<endl
#define v2(T) vector<vector<T>>
typedef long long int ll;
using namespace std;
const ll inf=1e18;

ll N,C,V;
int main(){
    while(cin>>N>>C>>V) {
        ll ans = inf;
        ll cp=1;
        ll numC=1;
        REP(i,0,30){
            ans= min(ans,C*numC+((N-1)/cp+numC-1)*V);
            p(ans);
            cp *= 2;
            numC++;
        }
        p(ans);
    }
    return 0;
}