#include<stdio.h> 

void calculate( int(*a)[4] );

int main(void) { 
	
	int a[3][4] = { {1,2,3,4}, {5,6,7,8}, {9,10,11,12} };
	
	calculate(a); 
	
	return 0; 
	
} 

void calculate( int(*a)[4] )
{
	for(int i = 0; i < 3; i++ ){ 
		int sum = 0; 
		for(int j = 0; j < 4; j++){
			sum += a[i][j]; 
				} 
				printf("%d列目の合計は%d\n",i+1,sum);
			}
		}