22 + 10 = - 32, 17 + 3 =  - 20, 14 + 4 =  - 18, 8 + 8 =  - 16, 15 + 15 =  - 30, 12 + 12 =  - 24, 19 + 6 = - 25, 30 + 6 = - 36, 25 + 10 = - 35, 38 + 2 = - 40,

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