Row

1

1

1

1

2

2

2

2

3

3

3

3

4

4

4

4

4

4

4

4

3

3

3

3

2

2

2

2

1

1

1

1

Row

4

4

4

4

3

3

3

3

2

2

2

2

1

1

1

1

Row