#include <stdio.h>

int main()
{
	FILE *f = fopen("test.txt", "r");
	FILE *g = fopen("sifra.txt", "w");
	char c;
	
	if (f == NULL)
	{
		printf("Greska u citanju datoteke\n");
		return -1;
	}
	
	if (g == NULL)
	{
		printf("Greska u citanju datoteke\n");
		return -1;
	}
	
	while(1)
	{
		fscanf(f, "%c", &c);
		
		if (feof(f))
			break;
		
		if (c >= 'A' && c <= 'Z')
		{
			if (c == 'Z') c = 'A';
			else c = c + 1;
		}
		
		fprintf(g, "%c", c);
	}
	
	return 0;
}