#include <stdio.h>
#include <stdlib.h>

main(int argc, char **argv)
{
	char s[256], *is, *os;
	int n,l;

	n=atoi(argv[1]);
	for ( is=argv[2], l=0; *is!=0x00; is++, l++)
			;
	l-=n;
	os=s;
	is=argv[2]+( l < 0 ? 0 : l); 

	do
	{
		*os=*is++;
	}
	while(*os++!=0x00);

	puts(s);
}