Envelopes and stamps - Caribbean Mind Forge

Envelopes and stamps - Caribbean Mind Forge

Caribbean Mind Forge (http://cmf.uci.cu)
Envelopes and stamps
Agregado por jbarral
Descripción
There are 5 types of envelopes without stamps and 4 types of stamps of the same value. How many ways
can you choose an envelope and a stamp to write a letter?
Especificación de entrada
You must enter nothing but the number of ways.
Ejemplo de entrada
10
URL
http://localhost/agilidadMental/read/153350