C++ :

#include<iostream>
#include<algorithm>
using namespace std;
int n,a[10008],mx,mxx,l,s;
int main()
{
	cin>>n;
	for (int i=1;i<=n;i++){
		cin>>a[i];
		if (a[i]>mx) {mx=a[i];l=i;}
	}
	for (int i=1;i<=n;i++)
	 if (a[i]<mx&&a[i]>mxx) {mxx=a[i];s=i;}
	 cout<<abs(l-s)*10<<endl;
	return 0;
}