Merge https://github.com/sidorovis/cpp_craft_1013
3_4 solved
3_4 solved
3_5 solved
3_6 solved
Merge https://github.com/sidorovis/cpp_craft_1013
4_4 solved
unthreaded 4_5 solved
4_5 solved
Merge https://github.com/sidorovis/cpp_craft_1013
Merge pull request #144 from Aljaksandr/master

Tasks #3, #4 solution for Aljaksandr