###  header 1
```python
# Program to multiply two matrices using nested loops

# take a 3x3 matrix
A = [[12, 7, 3],
    [4, 5, 6],
    [7, 8, 9]]

# take a 3x4 matrix
B = [[5, 8, 1, 2],
    [6, 7, 3, 0],
    [4, 5, 9, 1]]

result = [[0, 0, 0, 0],
        [0, 0, 0, 0],
        [0, 0, 0, 0]]

# iterating by row of A
for i in range(len(A)):

    # iterating by coloum by B
    for j in range(len(B[0])):

        # iterating by rows of B
        for k in range(len(B)):
            result[i][j] += A[i][k] * B[k][j]

for r in result:
    print(r)


# Program to multiply two matrices using nested loops

# take a 3x3 matrix
A = [[12, 7, 3],
    [4, 5, 6],
    [7, 8, 9]]

# take a 3x4 matrix
B = [[5, 8, 1, 2],
    [6, 7, 3, 0],
    [4, 5, 9, 1]]

result = [[0, 0, 0, 0],
        [0, 0, 0, 0],
        [0, 0, 0, 0]]

# iterating by row of A
for i in range(len(A)):

    # iterating by coloum by B
    for j in range(len(B[0])):

        # iterating by rows of B
        for k in range(len(B)):
            result[i][j] += A[i][k] * B[k][j]

for r in result:
    print(r)
```
text

```test```
###  header number 2
- test 1