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

int main(int argc, char *argv[]){
	FILE *f=stdout;
	int i;
	if(argc!=3 &&  argc!=5){
		printf("Nekorektna upotreba.\n");
		exit(EXIT_FAILURE);
	}
	
	if(argc==5 && strcmp("-f",argv[3])==0){
		f = fopen(argv[4],"w");
		if(f==NULL){
			exit(EXIT_FAILURE);
		}
	}

	for(i=0; argv[1][i]; i++)
		argv[2][i]=argv[1][i];

	fprintf(f,"%s",argv[2]);

	fclose(f);
	return 0;
}