/*#include <stdio.h>
#include <string.h>
int main()
{
int n;
scanf("%d", &n);
printf("%c%d",(n-4)%12+'A',(n+6)%10);
}
*/
/*
#include <stdio.h>
int main()
{
long long int i, a, b,max=11,min=95;
scanf("%d ", &a);
for (i=2; i<=1000; i++)
{
scanf("%d",&b);
if(max < b)
{
max = b;
}
if(min > b)
{
min = b;
}
}
printf("%d", max-min);
}
*/