Just FYI (has been said a gazillion times on the Internet): no state on this planet was ever communist. Communism is a society without money, no such thing existed on a state level anywhere. The states you are referring to were 100% socialist, i.e. no private property in any form or share with very very few exceptions; money tightly controlled by the state; all businesses are state-owned.

The comment above though probably meant the true communism, i.e. society without money.