简单易懂( •̀ ω •́ )✧

#include<bits/stdc++.h>
using namespace std;
int m,n,k;
char a[1001],b[1001];
int main(){
	queue<int> q;
	queue<int> q2;	
	cin>>m>>n>>k; 
	for(int i=1;i<=m;i++){
		q.push(i);
	}
	for(int i=1;i<=n;i++){
		q2.push(i);
	}
	for(int i=1;i<=k;i++){
		cout<<q.front()<<" "<<q2.front()<<endl;
		q.push(q.front());
		q.pop();
		q2.push(q2.front());
		q2.pop();
	}	
	return 0;
}