#include<stdio.h>

int main() {
    int r1,c1,r2,c2;
    scanf("%d %d", &r1, &c1);
    
    int A[r1][c1];
    for (int i = 0;i < r1;i++) {
    for (int j = 0;j < c1;j++)
    {
        scanf("%d", &A[i][j]);
    }
}

scanf("%d %d", &r2, &c2);

int b[r2][c2];
for (int i = 0;i < r2;i++) {
    for (int j = 0;j < c2;j++) 
    {
        scanf("%d", &B[i][j]);
    }
}
if (c1 !== r2) {
    printf("Invalid input");
    return 0;
}
int result[r1][c2];

for (int i = 0;i < r1;i++) {
    for (int j = 0;j < c2;j++)
    {
        result[i][j] = 0;
    }
}
for (int i = 0;i < r1;i++) {
    for (int j = 0;j < c2;j++)
    {
        for (int k = 0;k < c1;k++) {
            result[i][j] += A[i][k] * b[k][j];
        }
    }
}

for (int i = 0;i < r1;i++) {
    for (int j = 0;j < c2;j++) {
        printf("%d",result[i][j]);
        if (j < c2 - 1) printf(" ");
    }
    printf("\n");
}

return 0;
}