C++ :

#include<iostream>
using namespace std;
char from[100],to[100];
void solve(char *p,int n,char *q)
{
	p+=n-1;
	while (*q++=*p++) ;
}
int main()
{
	int n,m;
	cin>>n;
	for (int i=0; i<n; i++) cin>>from[i];
	cin>>m;
	solve(from,m,to);
	cout<<to<<endl;
	return 0;
}