1 0 0 0 0 2 0 0 0 0 3 0 0 0 0 4 0 0 0 0 5 0 0 0 0 6 7 0 0 0 0 8 0 0 0 0 9 0 0 0 0 10 0 0 0 0 11 0 0 0 0 12 13 0 0 0 0 14 0 0 0 0 15 0 0 0 0 16 0 0 0 0 17 0 0 0 0 18 19 1 6 11 16 20 2 7 12 17 21 3 8 13 18 22 4 9 14 19 23 5 10 15 20 24 25 21 26 31 36 26 22 27 32 37 27 23 28 33 38 28 24 29 34 39 29 25 30 35 40 30 31 41 46 51 56 32 42 47 52 57 33 43 48 53 58 34 44 49 54 59 35 45 50 55 60 36 37( 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 ) 38