0 0 0 0
 0 0 0 0
 0 0 0 0
 0 0 0 0
 0 0 0 0

 0 0 0 0
 0 0 0 0
 0 0 0 0
 0 0 0 0
 0 0 0 0

 0 0 0 0
 0 0 0 0
 0 0 0 0
 0 0 0 0
 0 0 0 0

 1 6 11 16
 2 7 12 17
 3 8 13 18
 4 9 14 19
 5 10 15 20

 21 26 31 36
 22 27 32 37
 23 28 33 38
 24 29 34 39
 25 30 35 40

 41 46 51 56
 42 47 52 57
 43 48 53 58
 44 49 54 59
 45 50 55 60

( 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 )