#include <stdio.h>
 
void cryptogram(char *s, int n)
{
  int i;
  char w[] = "azAZ09";
  while (*s) {
    for ( i = 0; i < 6; i += 2) {
      if (*s >= w[i] && *s <= w[i + 1]) {
        *s = w[i] + (*s - 2 * w[i] + w[i + 1] + n + 1) % (w[i + 1] - w[i] + 1);
      }
    }
    s++;
  }
}
 
int main(void)
{
  char s[100];
  printf("input = ");
  scanf("%s", s);
  cryptogram(s, 2);
  printf("%s\n", s);
  cryptogram(s, -2);
  printf("%s\n", s);
 
  return 0;
}
 

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