22: Add solution for "quiz4".

Created by  Aaw9nJhsNmfzFih9mKyNw9mV8CgERXJkRa1kK1Kx3LQH  on August 8, 2021
ZNCNX23GPJZR5HROUWMCKDKPYFK4QWWPUHCRSDPHGVZUOWKIGHZQC
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