구구단 while문

#include <stdio.h>

int main()
{
	int a = 0;
	while (a <9)
	{
		a++;
		int b = 2;
		while (b <= 9)
		{
			printf("%d * %d = %2d\t", b, a, a*b);
			b++;
		}
		printf("\n");
	}
}