119 A C++

#include <bits/stdc++.h>
using namespace std;
int a,b,n;

int gcd(int a, int b)
{
    int t;
    while(b>0)
    {
        t = a % b;
        a = b;
        b = t;
    }
    return a;
}
void giai()
{
    int i=0;
    while(n>0)
    {

        i++;
        //cout<<n<<" "<<i<<endl;
        if(i%2==1) n=n-gcd(a,n);
        else n=n-gcd(b,n);
    }
    if(i%2==1) cout<<0;
    else cout<<1;
}
int main()
{
    freopen("119a.inp","r",stdin);
    freopen("119a.out","w",stdout);
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    cin >> a >> b >> n;
    giai();
   // return 0;
}