[redhead]

#include <stdio.h>
#include <string.h>
#define INPUT 512

int main()
{
  int i;
  char name[INPUT] = {'\0'} ;
  while(1)
  {
    printf ( "Enter the string (quit to quit): " ) ;
    fgets( name, INPUT, stdin ) ;
    if(!strncmp(name, "quit", 4))
      break;
    for( i = 0; i < strlen( name ); ++i )
      if ((name[i] >= 'a' && name[i] <= 'z') || 
          (name[i] >= 'A' && name[i] <= 'Z'))
        name[i] = name[i] + 1;
    printf ( "Transformed string: %s\n ", name) ;
  }
  return 0;
}