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Yaro4Java wants to merge 12 commits intomasterfrom

Commits on Jan 1, 2020

Filling class SimpleBigNumbersService and testing its methods
Yaro4Java
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Commits on Jan 2, 2020

Commits on Jan 3, 2020

playing with String pool in main()
Yaro4Java
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Commits on Jan 4, 2020

playing with String pool in main()
Yaro4Java
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Commits on Jan 7, 2020