#include<bits/stdc++.h>
using namespace std;


int main() {
	int n,a[110],m,x,ma = 0;
	cin>>m>>x>>n;
	int i;
	for(i = 0; i < n; i++) {
		cin>>a[i];
		if(a[i] > a[ma]){
			ma = i;
		}
	}
	
	cout<<ma+1<<" "<<(a[ma]-x) * m;
}

/**************************************************************
	Problem: 1814
	User: admin
	Language: C++
	Result: Accepted
	Time:11 ms
	Memory:2072 kb
****************************************************************/