#include<bits/stdc++.h>
using namespace std;
int main()
{
    int a,b;
    cin>>a>>b;
    int n;
    cin>>n;
    int a1=1,a2=1;
    for(int i=1;i<=n;i++)
    {
        cout<<a1<<" "<<a2<<endl;
        a1++,a2++;
        if(a1>a)
        {
            a1=1;
        }
        if(a2>b)
        {
            a2=1;
        }
    }
    return 0;
}