| -2   4
|         | = ( -14 )
| 4   -1

| -6   -8
|         | = (   )
| -2   -5

| -3   0
|         | = (   )
| 6   -5

| -4   -6
|         | = (   )
| 6   1

| -4   -2
|         | = (   )
| 1   -6

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

| 9   3
|         | = (   )
| -7   9

 +[         ]

| 8   -4
|         | = ( 36 )
| -5   7

| -1   1
|         | = (   )
| -1   1

| -5   8
|         | = (   )
| -8   1

| 7   -2
|         | = (   )
| 6   -8

| -4   -8
|         | = (   )
| -2   -7

| 2   2
|         | = (   )
| 2   -5

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

 +[         ]

| 0   0
|         | = ( 0 )
| -4   -4

| 9   -7
|         | = (   )
| 9   9

| -1   -2
|         | = (   )
| -7   8

| -9   -5
|         | = (   )
| -2   -5

| 3   2
|         | = (   )
| -2   -8

| 1   -4
|         | = (   )
| -5   4

| -8   1
|         | = (   )
| 0   -2

 +[         ]

| 8   7
|         | = ( 68 )
| -4   5

| -4   7
|         | = (   )
| -3   5

| 0   9
|         | = (   )
| -6   -7

| -5   4
|         | = (   )
| -3   6

| -9   -9
|         | = (   )
| -7   -1

| 4   -1
|         | = (   )
| -9   0

| 2   -8
|         | = (   )
| -7   -2

 +[         ]

  ++[[            ]]