#include <stdio.h>
#define MONTHS 12
#define YEARS  5

int main(void)
{
	const float rain[YEARS][MONTHS]=
	{
		{4.3, 4.3, 4.3, 3.0, 2.0, 1.2, 0.2, 0.2, 0.4, 2.4, 3.5, 6.6},
		{8.5, 8.2, 1.2, 1.6, 2.4, 0.0, 5.2, 0.9, 0.3, 0.9, 1.4, 7.3},
		{9.1, 8.5, 6.7, 4.3, 2.1, 0.8, 0.2, 0.2, 1.1, 2.3, 6.1, 8.4},
		{7.2, 9.9, 8.4, 3.3, 1.2, 0.8, 0.4, 0.0, 0.6, 1.7, 4.3, 6.2},
		{7.6, 5.6, 3.8, 2.8, 3.8, 0.2, 0.0, 0.0, 0.0, 1.3, 2.6, 5.2}
	};

	int year,month;
	float subtot,total;

	printf(" YEAR RAINFALL (inches)\n");
	for(year=0,total=0;year<YEARS;year++)
	{
		for(month=0,subtot=0;month<MONTHS;month++)
			subtot +=rain[year][month];
		printf("%5d %15.1f\n",2000+year,subtot);
		total += subtot;
	}

	printf("\nThe yearly average is %.1f inches.\n",total/YEARS);
	printf("MONTHLY AVERAGES: \n\n");
	printf(" Jan Feb Mar Apr May Jun Jul Aug Sep Oct ");
	printf(" Nov Dec\n");

	for(month=0;month<MONTHS;month++)
	{
		for(year=0,subtot=0;year<YEARS;year++)
			subtot += rain[year][month];
		printf("%4.1f",subtot/YEARS);
	}
		printf("\n");
		printf("详细清单：");
		printf("\n");
		for(year=0;year<YEARS;year++)
		{
			for(month=0;month<MONTHS-1;month++)
			printf("%.1f, ",rain[year][month]);
			printf("%.1f",rain[year][MONTHS-1]);
			printf("\n");
		}

		printf("\n");
		printf("行列调换后的详细清单：");
		printf("\n");
		for(month=0;month<MONTHS;month++)
		{
			for(year=0;year<YEARS-1;year++)
			printf("%.1f, ",rain[year][month]);
			printf("%.1f",rain[YEARS-1][month]);
			printf("\n");
		}
		
	return 0;
}