#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: wangyiyang
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/