| -7   9
|         | = ( -81 )
| 2   9

| 8   -3
|         | = (   )
| -4   3

| -8   7
|         | = (   )
| -2   4

| 1   -3
|         | = (   )
| -2   -2

| -9   3
|         | = (   )
| 0   0

| -7   -2
|         | = (   )
| -1   -4

| -5   6
|         | = (   )
| 5   1

 +[         ]

| 3   1
|         | = ( -15 )
| -6   -7

| -7   7
|         | = (   )
| -6   1

| 9   -6
|         | = (   )
| 8   -8

| -8   3
|         | = (   )
| -5   0

| 1   -6
|         | = (   )
| -6   -3

| -3   7
|         | = (   )
| 0   3

| -8   -3
|         | = (   )
| 5   3

 +[         ]

| -4   4
|         | = ( -28 )
| -2   9

| 3   -2
|         | = (   )
| 6   0

| -6   3
|         | = (   )
| 9   -2

| -4   -2
|         | = (   )
| 8   -5

| -2   7
|         | = (   )
| -4   0

| 6   1
|         | = (   )
| 3   -9

| -3   6
|         | = (   )
| 7   7

 +[         ]

| -7   -7
|         | = ( 28 )
| 2   -2

| 2   8
|         | = (   )
| -2   -7

| 4   -4
|         | = (   )
| -3   -5

| -1   8
|         | = (   )
| 6   -8

| -4   -4
|         | = (   )
| -1   9

| -1   4
|         | = (   )
| 8   8

| 7   -3
|         | = (   )
| 0   6

 +[         ]

  ++[[            ]]