#include<stdio.h>
#include<stdlib.h>
#include<string.h>
main (int argc, char *argv[])
{
    double X, G,N=0,S=0;
	str7: printf("Vvedite chislo X \n");
	scanf("%lf",&X);
	if (X<=0) {
		goto str12;
	}else{
		str12: printf("eche vvod X? \n");
		printf("use %s [y/n] \n",argv[0]);
		if(!strcmp(argv[1],"y")) {
		goto str7;
		getchar ();}
        if(!strcmp(argv[1],"n")) {
			G=N/S;
	getchar ();
		}
	}
	printf("G:%lf \n",G);
	getchar();
}