U3KIGVLUOPFECP7S2ZPGZOLKSLCSMVUGZNMDDC5UT2VDFJWFU4ZQC
LFLBKJFWWNPL6RVB6PHOE5FNHSMRUMGBOSCP5LKH5RJDVVUI2UBAC
D4FEFHQCSILZFQ5VLWNXAIRZNUMCDNGJSM4UJ6T6FDMMIWYRYILQC
FS2ITYYHBLFT66YUC3ENPFYI2HOYHOVEPQIN7NQR6KF5MEK4NKZAC
2DVVKKVA6PJ7VKYLGPQ22AXUB6ZWFMPWB445PRDZJDNLURUFDNDQC
* `#` to toggle between teacher and student mode
* `1` to toggle between teacher and student mode