题解 | #矩阵乘法#

x = int(input().strip())
y = int(input().strip())
z = int(input().strip())

mat_l = []
mat_r = []
mat_res = [[0] * z for _ in range(x)]

for i in range(x):
    row = list(map(int, input().strip().split()))
    mat_l.append(row)

for i in range(y):
    row = list(map(int, input().strip().split()))
    mat_r.append(row)


for i in range(x):
    for j in range(z):
        for k in range(y):
            mat_res[i][j] += mat_l[i][k] * mat_r[k][j]

for row in mat_res:
    for r in row:
        print(r, end=' ')
    print()