Problem #29: Spanish Arithmetic

4 + 4 + 4 + 4 + 4 = 20

In Spanish, this can be written:

  CUATRO
+ CUATRO
+ CUATRO
+ CUATRO
+ CUATRO
--------
  VEINTE

How are the 10 numerals represented by the 10 letters A, C, E, I, N, O, R, T, U and V for this sum to come out right?

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