Brain Even: https://asciinema.org/a/UH34Kvqh6f91zODp0pPtv09gy
Brain Calc: https://asciinema.org/a/pxL8elQJZkgmC0xbQgIJXpO3Z
Brain GCD: https://asciinema.org/a/ii8PLJ9wNi2MnHeoWnpuUmWFJ
Brain Progression: https://asciinema.org/a/JFulAqGEZfA1Ja5pxmOrUB1uJ
Brain Prime Game: https://asciinema.org/a/vmXyHw02H8EzNCVuvkf8CX9wX