#include <stdio.h>
#include <string.h>
 
static char modpow(n, e, m)
{
	int r = 1; // n to the 0 is 1.
	while (e--)
		r = (r * n) % m;
 
	return (char)r;
}
 
int main(void)
{
	char text[100];
	fgets(text, sizeof(text), stdin);
 
    for (size_t j = 0, n = strlen(text); j < n; j++)
    {
    	printf("before: %c (%i); ", text[j], text[j]);
    	text[j] += 10;
    	printf("after: %c (%i)\n", text[j], text[j]);
    }
 
    printf("Result: %s\n", text);
}
 

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

dGhpcyBpcyBhIHRlc3Q=

this is a test