Show:
EASY
MEDIUM!
HARD!!!
EXTREME!!!!!
IMPOSSABLE!!!!!!!!!!!!!!!!!
1

1+1

2

1

1+2

3

1

12+32

44

1

121+321

442

1

3241+1234

4475

2

2+2

4

2

2+4

6

2

22+21

43

2

546+123

669

2

5638+2536

8174

3

2+3

5

3

4+5

9

3

31+10

41

3

123+321

444

3

7645+2314

9959

4

5+5

10

4

3+3

6

4

45+71

116

4

781+324

1104

4

9999+9999

19998

5

10+10

20

5

7+3

10

5

45+81

126

5

541+231

772

5

1+1

5646445645456456