#include<bits/stdc++.h>
using namespace std;	
int main(){
	int a,b,c;
	int d[int_max],e[int_max];
bool f=1;
	cin>>a>>b>>c;
if(d[i]!=0){
	for(int i=1;i<=b;i++){
		cin>>d[i]>>e[i];
		if((a/d[i])*e[i]>=c){
			cout<<i<<" ";
f=0;
		}

	}if(f==1){cout<<-1;return 0;}}else{for(int i=1;i<=b;i++){cout<<i<<" ";}}
	
}


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看了题解改了一些