#include <stdio.h>

void main(){
	double a[10], b[10];
	double x;
	int i;

	a[0] = 1.234;
	a[1] = 2.345;
	a[2] = 3.456;
	a[3] = 4.567;
	a[4] = 5.678;
	a[5] = 6.789;
	a[6] = 7.89;
	a[7] = 8.901;
	a[8] = 9.012;
	a[9] =10.123;
	b[0] =11.234;
	b[1] =12.345;
	b[2] =13.456;
	b[3] =14.567;
	b[4] =15.678;
	b[5] =16.789;
	b[6] = 7.89;
	b[7] =18.901;
	b[8] =19.012;
	b[9] =20.123;

	/* calc */
	ここを記述！

	printf("A x B = %lf\n", x);
}