Enumeration with shifted indices

New to Julia
2

Here is one way:

julia> iter = ("A", "B", "C")
("A", "B", "C")

julia> for (i, a) in zip(Iterators.countfrom(0), iter)
           println("i = $i, a = $a")
       end
i = 0, a = A
i = 1, a = B
i = 2, a = C

julia> for (i, a) in zip(Iterators.countfrom(0, 2), iter)
           println("i = $i, a = $a")
       end
i = 0, a = A
i = 2, a = B
i = 4, a = C
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