# Arithmetic Progression?

instead of numbers there are alphabets

a-z

1st term is aaaa

last term is zzzzzz

Whats the total number of terms

a-z

1st term is aaaa

last term is zzzzzz

Whats the total number of terms

Update:
its like

aaaa

aaab

aaac

.

.

aaaz

aaba

aabb

aabc

.

.

zzzz

aaaaa

aaaa

aaab

aaac

.

.

aaaz

aaba

aabb

aabc

.

.

zzzz

aaaaa

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