Problem:
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Matrix Multiplication

Write a program which reads a $n \times m$ matrix $A$ and a $m \times l$ matrix $B$, and prints their product, a $n \times l$ matrix $C$. An element of matrix $C$ is obtained by the following formula:

\[
c_{ij} = \sum_{k=1}^m a_{ik}b_{kj}
\]

where $a_{ij}$, $b_{ij}$ and $c_{ij}$ are elements of $A$, $B$ and $C$ respectively.

Input

In the first line, three integers $n$, $m$ and $l$ are given separated by space characters

In the following lines, the $n \times m$ matrix $A$ and the $m \times l$ matrix $B$ are given.

Output

Print elements of the $n \times l$ matrix $C$ ($c_{ij}$). Print a single space character between adjacent elements.

Constraints

$1 \leq n, m, l \leq 100$

$0 \leq a_{ij}, b_{ij} \leq 10000$

Sample Input

3 2 3
1 2
0 3
4 5
1 2 1
0 3 2

Sample Output

1 8 5
0 9 6
4 23 14

Note

      解説

Solution in C (judge verdict: Wrong Answer)

#include<stdio.h>

int main(){
 int i,j,k,n,m,l,A[100][100]={},B[100][100]={};
 unsigned long int C[100][100]={};
 scanf("%d %d %d", &n, &m, &l);
 for(i=0; i<n; i++){
  for(j=0; j<m; j++){
   scanf("%d", &A[i][j]);
  }
 }
 for(i=0; i<m; i++){
  for(j=0; j<l; j++){
   scanf("%d", &B[i][j]);
  }
 }
 for(i=0; i<n; i++){
  for(j=0; j<l; j++){
   for(k=0; k<m; k++){
    C[i][j]+=A[i][k]*B[k][j];
   }
  if(j!=l-1){printf("%d ",C[i][j]);}
  else{printf("%d\n", C[i][j]);}
  }
 }
 return 0;
}