#include
#define ROT 13
int main(void)
{
int c,e;
while((c=getchar())!=EOF)
{
if(c >='A' && c <='Z')
{
if((e = c + ROT) <= 'Z')
putchar(e);
else
{
e = c - ROT;
putchar(e);
}
}
else if(c >='a' && c <='z')
{
if((e= c + ROT) <= 'z')
putchar(e);
else
{
e = c - ROT;
putchar(e);
}
}
else
putchar(c);
}
return 0;
}