Brado!

#include <stdio.h>#include <ctype.h>char* printuplow(char* word, char* input){		if(input[0] == '\0'){		return;	}		input[0] = toupper(input[0]);	fprintf(stdout, "%s\n", word);	printuplow(word, &input[1]);	input[0] = tolower(input[0]);	fprintf(stdout, "%s\n", word);	printuplow(word, &input[1]);}int main(int argc, char** argv){	if(argc>1)	{	fprintf(stderr, "%s\n", argv[1]);	printuplow(argv[1], &argv[1][0]);	}	return 0;}