old problems calendar year

⠀⠀⠀⠀⠀⠀⠀⣀⣀⠠⠄⣀⣀⣀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡀⠀⠀
⠀⠀⠀⣀⠔⠒⠉⠁⠀⠀⠀⠀⠀⠈⠙⠒⢦⡀⠀⠀⠀⠀⣲⠀⠀⣠⢧⠀⠀
⠀⢠⠎⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⠢⡀⠀⠀⡇⠱⣞⢧⣀⣵⠂
⠀⡇⠀⠀⣤⠶⠛⠶⠶⣄⠀⠀⠀⣀⡤⠤⣄⣀⠀⢱⡀⠀⢇⠀⠘⢆⠃⠀⠀
⢸⠁⠀⡾⠁⠀⠀⠀⡀⠙⡆⠀⡾⠋⠀⠀⠀⠙⣦⡀⡇⠀⡘⠀⠀⠘⡆⠀⠀
⢸⠀⠀⢧⠀⠀⠀⠈⠁⢀⡷⠸⡇⠀⠋⠀⠀⠀⣽⢧⠇⠀⢧⠀⠀⠀⣇⠀⠀
⠸⡄⠀⢬⣷⣤⣀⣠⣴⡟⠁⠀⢿⣦⣄⣀⣤⣾⠟⡜⠀⠀⡏⠀⠀⠀⣿⠀⠀
⠀⢣⡀⠀⠉⠙⠛⠛⠉⠀⠈⠁⠀⠉⠙⠻⠛⢋⠞⠁⠀⢀⡇⠀⠀⠀⡇⠀⠀
⠀⠀⠈⠲⢄⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡰⠋⠀⠀⠀⠷⠧⡤⢤⢾⠃⠀⠀
⠀⠀⠀⠀⠀⠉⠓⠤⠤⣄⣀⣀⣀⡤⠔⠋⠀⠀⠀⠀⠀⡖⣿⣭⣞⣼⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡇⠈⠛⡿⢺⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠳⣄⠤⠽⠃⠀⠀⠀

old problems calendar year

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