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

int c;
int XOR=1+4+16+64;

int main()
{
	char s[128];
	FILE *fin,*fout;
	printf("File da crittografare->");
	gets(s);
	fin=fopen(s,"rb");
	strcat(s,".cri");
	fout=fopen(s,"wb");
	while((c=getc(fin))!=EOF)
		putc(c^XOR,fout);
	fclose(fin);
	fclose(fout);
	printf("Crittografato in [%s]\n",s);
	return 0;
}