#include <stdlib.h>
#include <stdio.h>

void
main (void)
{
    char *eofifnull;
    char InString[202];
    char OutString[202];
    int i;

    while(1)
    {
        /* Get the "START" */
        eofifnull = gets(InString);
        if (eofifnull == NULL ||
            strncmp(InString,"START",5)) 
        {
            break;
        }

        /* Check for the ENDOFINPUT marker */
        if (strncmp(InString,"ENDOFINPUT",10) == 0)
        {
            break;
        }

        /* Get the string */
        gets(InString);

        /* Create the output string */
        memset(OutString,'\0',202);
        for (i=0; i<strlen(InString); i++)
        {
            if (isalpha(InString[i]))
            {
                if (InString[i] <= 'E')
                {
                    OutString[i] = InString[i] + ('V' - 'A');
                }
                else
                {
                    OutString[i] = InString[i] - ('F' - 'A');
                }
            }
            else
            {
                OutString[i] = InString[i];
            }
        } 

        /* Print the output */
        printf("%s\n",OutString);

        /* Get the "END" */
        eofifnull = gets(InString);
    }
}