import numpy as np
with open('a.txt', 'r') as file1:
    with open('a.txt','r') as file11:
        with open('b.txt', 'r') as file2:
            n = len(file1.readline().split()) #количество столбцов в первой матрице
            file1 = file11.readlines()
            file2 = file2.readlines()
            for i in range(len(file1)):
                file1[i] = list(file1[i].strip().split())
            for j in range(len(file2)):
                file2[j] = list(file2[j].strip().split())
            m = len(file2) #количество строк во второй матрице
            if n == m:
                x1 = np.array(file1, 'f')
                x2 = np.array(file2, 'f')
                c = np.dot(x1,x2)
                file3 = open('c.txt', 'w')
                print(c,file = file3)
                file3.close()