题解 | #矩阵乘法#

while True:
    try:
        n=int(input())
        m=int(input())
        s=int(input())
        firstArray=[]
        secondArray=[]
        for i in range(n):
            firstArray.append(list(map(int, input().split())))
        for j in range(m):
            secondArray.append(list(map(int, input().split())))
        res=[[0 for i in range(s)] for j in range(n)] # 答案数组 n*s
        for i in range(n):
            for j in range(s):
                for x in range(m):
                    res[i][j]+=firstArray[i][x]*secondArray[x][j]
        for e in res:
            # print(' '.join(e)) 这里竟然卡了两三次 int忘记转换成str
            print(' '.join(list(map(str, e))))
    except:
        break