[jwstohr]

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

int main()
{
char orig[256];
char hide[256];
char str[256];
char c;
int len, i, n;

printf("Enter String: ");

fgets( orig, 255, stdin );

printf("Unencrypted String is: %s\n", orig);

len = strlen(orig);
len--;
orig[len] = '\0';
printf("String length: %d\n", len);
n=0;

printf("Encrypted String: \n");
for (i=0; i < len; ++i)
{
n = n + 1;
if (n > 4)
n = 1;

if ((orig[i] < 'a' && orig[i] > 'z') || (orig[i] < 'A' && orig[i] > 'Z'))
hide[i] = orig[i];
else if (orig[i] == ' ')
hide[i] = ' ';
else if (n == 1)
hide[i] = orig[i]+1;
else if (n == 2)
hide[i] = orig[i]-2;
else if (n == 3)
hide[i] = orig[i]+3;
else if (n == 4)
hide[i] = orig[i]-4;


printf("%c", hide[i]);




}
printf("\n");



return 0;
}