Covid-19 T2W19D3 (Repeated addition)

Covid-19 T2W19D3 (Repeated addition)
Covid-19 T2W19D3 (Repeated addition)
Covid-19 T2W19D3 (Repeated addition)
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Author's Instructions

Counting in multiples of 2's, 5's and 10's.(Thank you to Kobie Kleynhans.)