1.4 + 6 =7 + 4 =9 + 7 =2 + 6 =3 + 5 =
2.7 + 8 =5 + 8 =7 + 5 =9 + 1 =9 + 9 =
3.6 + 1 =4 + 4 =7 + 4 =2 + 4 =5 + 4 =
4.1 + 4 =7 + 8 =7 + 7 =2 + 8 =1 + 9 =
5.1 + 2 =1 + 5 =5 + 5 =8 + 5 =5 + 5 =
6.6 + 6 =9 + 3 =3 + 9 =8 + 5 =6 + 2 =
7.1 + 6 =5 + 2 =9 + 5 =6 + 5 =8 + 7 =
8.9 + 7 =4 + 4 =6 + 8 =4 + 3 =6 + 4 =
9.4 + 7 =6 + 8 =9 + 8 =3 + 8 =6 + 9 =
10.9 + 8 =2 + 5 =3 + 8 =1 + 3 =2 + 4 =
11.3 + 4 =4 + 9 =4 + 1 =9 + 4 =4 + 9 =
12.1 + 9 =9 + 6 =3 + 3 =2 + 2 =6 + 5 =
13.9 + 5 =9 + 2 =1 + 7 =6 + 2 =2 + 1 =
14.5 + 9 =8 + 0 =3 + 3 =4 + 7 =7 + 9 =
15.9 + 2 =4 + 2 =8 + 2 =3 + 2 =3 + 9 =
16.2 + 9 =4 + 2 =3 + 6 =6 + 6 =6 + 4 =
17.8 + 4 =8 + 7 =7 + 1 =1 + 5 =4 + 3 =
18.3 + 4 =8 + 3 =2 + 2 =2 + 7 =8 + 9 =
19.6 + 7 =2 + 3 =5 + 8 =8 + 9 =2 + 1 =
20.7 + 9 =2 + 8 =8 + 1 =7 + 7 =5 + 6 =

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