multiply by x1 and x2

Front

1 x 0 =

Back

0

Front

1 x 1 =

Back

1

Front

1 x 4 =

Back

4

Front

1 x 10 =

Back

10

Front

1 x 11 =

Back

11

Front

1 x 12 =

Back

12

Front

1 x 5 =

Back

5

Front

1 x 3 =

Back

3

Front

1 x 7 =

Back

7

Front

1 x 2 =

Back

2