| 4   -2
|         | = ( -2 )
| 5   -3

| 1   5
|         | = (   )
| -1   -8

| 3   -5
|         | = (   )
| 4   1

| -7   5
|         | = (   )
| 1   5

| 2   -9
|         | = (   )
| 3   5

| -6   7
|         | = (   )
| 9   -8

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

 +[         ]

| -4   8
|         | = ( 32 )
| -1   -6

| 5   -5
|         | = (   )
| 0   -1

| 1   2
|         | = (   )
| -8   -2

| -6   -8
|         | = (   )
| 7   9

| -6   2
|         | = (   )
| -4   7

| 8   -4
|         | = (   )
| 0   -2

| 4   4
|         | = (   )
| -8   1

 +[         ]

| 6   -5
|         | = ( -17 )
| -7   3

| 5   6
|         | = (   )
| 0   6

| -4   -8
|         | = (   )
| 1   -9

| 7   5
|         | = (   )
| -5   -6

| 9   -3
|         | = (   )
| -7   6

| -1   8
|         | = (   )
| 9   7

| -2   -5
|         | = (   )
| -2   0

 +[         ]

| -5   1
|         | = ( -7 )
| -3   2

| -7   -1
|         | = (   )
| -5   -1

| -4   2
|         | = (   )
| 5   5

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

| 8   2
|         | = (   )
| 8   -1

| 9   -5
|         | = (   )
| 5   -7

| -1   5
|         | = (   )
| 3   -5

 +[         ]

  ++[[            ]]