题解 | #矩阵乘法#

x = int(input())
y = int(input())
z = int(input())
A, B = [], []

for i in range(x):
    a = list(map(int, input().split()))
    A.append(a)
for i in range(y):
    b = list(map(int, input().split()))
    B.append(b)

R = [[0 for k in range(z)] for i in range(x)]  # 先初始化一个二维数组，初始值为0
# 计算每个输出单元格的数据，A行与B列的乘积，长度为y
for m in range(x):
    for n in range(z):
        for k in range(y):
            R[m][n] += A[m][k] * B[k][n]
for i in range(x):
    for j in range(z):
        print(R[i][j], end=" ")
    print()