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Last edited on
say int n< 1billion.
n = 999,777,321
count how many digits n have.
make segments.
keep 999 in millions
777 in thousands.
321 > 3 for hundred, 2 from (twenty, thirty... ninety ) 1 from (one, two...nine)
when 21 is between 11-19 use hand coded (eleven...nineteen)
999 and 777 part is similarly as 321