#include <stdio.h>
#define L 2
#define M 3
#define N 2
int main(void){
	int ma[L][M] = {{1,2,3},{4,5,6}};
	int mb[M][N] = {{1,5},{5,3},{8,1}};
	int mc[L][N]= {{0,0},{0,0}};
	int i,j,k;
	/* この部分を記述する*/
	for (i=0; i<L; i++) {
		for (k=0; k<N; k++) {
			for(j=0; j<M; j++){
				mc[i][k] += ma[i][j] * mb[j][k];
			}
		}
	}
 
	for (i=0; i<L; i++) {/*配列全体を走査する定石的な書き方*/
		for (k=0; k<N; k++) {
			printf("%3d", mc[i][k]);
		}
	printf("\n");
	}
	return 0;
 
}
 

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