full matrix code

r1 = int(input("Enter No of rows of 1st Matrix: "))
c1 = int(input("Enter No of columns of 1st Matrix: "))

r2 = int(input("Enter No of rows of 2nd Matrix: "))
c2 = int(input("Enter No of columns of 2nd Matrix: "))

# for matrix multiplication to be possible no of columns in matrix 1 = no of rows in matrix 2

if c1==r2:

    mat1 = []

    mat2 = []

    result = []

    print("\nEnter The Values in the matrix 1: ")

    for i in range(r1):
        g=[]
        for j in range(c1):
            g.append(int(input()))
        mat1.append(g)

    for i in range(r1): 
        for j in range(c1): 
            print(mat1[i][j], end = " ") 
        print() 

    print("\nEnter The Values in the matrix 2: ")

    for k in range(r2):
        h=[]
        for l in range(c2):
            h.append(int(input()))
        mat2.append(h)

    for k in range(r2): 
        for l in range(c2): 
            print(mat2[k][l], end = " ") 
        print() 


    for r in range(r1):
        u=[]
        for s in range(c2):
            u.append(int(0))
        result.append(u)

    for r in range(r1): 
        for s in range(c2): 
            result[r][s]

    print("\nResult is: \n")


    # iterate through rows of r1
    for x in range(len(mat1)):
       # iterate through columns of c2
       for y in range(len(mat2[0])):
           # iterate through rows of r2
           for z in range(len(mat2)):
                result[x][y] += mat1[x][z] * mat2[z][y]
    for r in result:
        print(r)

else:
    print("\nNot possible")