题解 | #矩阵乘法#

import sys

inp = sys.stdin.readlines()

x = int(inp[0].strip())
y = int(inp[1].strip())
z = int(inp[2].strip())

arr1=[]
arr2=[]

for i in range(3, len(inp)):
    if i<x+3:
        line = inp[i].strip().split()
        arr1.append(list(map(int, line)))
    else:
        line = inp[i].strip().split()
        arr2.append(list(map(int, line)))

arr3=[[0]*z for _ in range(x)]
for i in range(x):
    for j in range(z):
        v = sum([arr1[i][t] * arr2[t][j] for t in range(y)])
        arr3[i][j] = v

for i in range(x):
    print(' '.join(map(str, arr3[i])))