1.5 - 1 = 46 - 1 = 511 - 7 = 47 - 1 = 69 - 8 = 1
2.5 - 1 = 46 - 2 = 41 - 0 = 110 - 1 = 94 - 2 = 2
3.14 - 7 = 78 - 1 = 715 - 7 = 811 - 3 = 811 - 6 = 5
4.11 - 2 = 910 - 7 = 34 - 1 = 311 - 4 = 78 - 7 = 1
5.5 - 4 = 111 - 7 = 413 - 7 = 613 - 5 = 812 - 4 = 8
6.11 - 6 = 54 - 4 = 012 - 9 = 311 - 8 = 33 - 2 = 1
7.5 - 5 = 010 - 9 = 116 - 9 = 75 - 3 = 27 - 0 = 7
8.4 - 3 = 113 - 9 = 48 - 4 = 410 - 7 = 313 - 8 = 5
9.8 - 2 = 69 - 2 = 75 - 2 = 311 - 2 = 910 - 3 = 7
10.3 - 1 = 27 - 2 = 510 - 2 = 89 - 1 = 815 - 8 = 7
11.4 - 2 = 28 - 3 = 513 - 6 = 710 - 3 = 79 - 5 = 4
12.17 - 8 = 912 - 8 = 411 - 9 = 212 - 5 = 717 - 8 = 9
13.8 - 8 = 015 - 6 = 98 - 5 = 314 - 5 = 912 - 6 = 6
14.9 - 4 = 511 - 3 = 87 - 5 = 211 - 5 = 616 - 7 = 9
15.15 - 7 = 810 - 6 = 49 - 5 = 413 - 5 = 88 - 1 = 7
16.9 - 7 = 210 - 6 = 412 - 3 = 918 - 9 = 914 - 6 = 8
17.10 - 5 = 510 - 8 = 214 - 6 = 817 - 9 = 89 - 2 = 7
18.9 - 4 = 53 - 3 = 05 - 4 = 112 - 3 = 910 - 9 = 1
19.17 - 9 = 89 - 3 = 610 - 5 = 57 - 6 = 19 - 1 = 8
20.14 - 9 = 513 - 4 = 913 - 4 = 94 - 1 = 36 - 2 = 4

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