IS
Solution IS
B
Solution B
530
Solution 530
780
Solution 780
470
Solution 470
 
 
 
 
 
 
 
 
 
 
580
Solution 580
600
Solution 600
500
Solution 500
420
Solution 420
560
Solution 560
 
 
 
 
 
 
 
 
 
 
650
Solution 650
520
Solution 520
Supersolution
Supersolution