animation
Merge branch 'master' of https://github.com/Bryukh-Checkio-Tasks/checkio-task-sums-in-a-triangle
Merge branch 'master' of https://github.com/Bryukh-Checkio-Tasks/checkio-task-sums-in-a-triangle
hints
Merge branch 'master' of https://github.com/Bryukh-Checkio-Tasks/checkio-task-sums-in-a-triangle