#include <stdio.h>
#include <string.h>
#include <ctype.h>

char *str_cpy(char *firts, const char *second)
 {
    while(*second) *firts++ = *second++;
    ++*firts = '\0';
    return firts;
}

 char *str_cat(char *dest, const char *src)
 {
 	char *tmp = dest;

 	while (*dest)
 		dest++;
 	while ((*dest++ = *src++) != '\0')
 		;
 	return tmp;
 }


int main()
{
	int i;
    char str[100];
    char temp[100];
     printf("Input symbol:\n");
      gets(str);
   str_cpy(temp, str);
      i=0;
      while(temp[i])
      {
      	 if(isalpha(temp[i]))
      	 {
      	     temp[i]=temp[i]+1;
      	 }
      	   i++;
      }
      i=0;
       while(temp[i])
       {
       printf("%c",temp[i]);
       i++;
     }
}