12345678910-1112131415161718192021222324252627,282930313233343536-37383940414243444546 1- 23 4 5 6 7 89 1011 12 13 1415 16 17 18 19 20 2122 23 24 2526 27 28 29 30 31 32 3334 35 36 3738 39 40 4142 43 44 4546 47 48 49 50 515253 54 5556 57 58 59 6061 62 6364=+ 65 66 67 6869 70 71 72 73 7475 76 77 78 79 80 81 82 83 84 8586 87 88 8990,-12345 6 (1)(2) (3) (4)(5) (6)(7)1+66 1. 2.5001-( 2) - 1 2341100%231-
