Whether it is ambiguous grammar?

Since the grammar has left most derivation as well as right most derivation so it is ambiguous grammar true or false and why?

Sumit Verma @sumitverma 25 Jun 2017 12:21 am

An ambiguous grammar is a context-free grammar for which there exists a string that can have more than one leftmost derivation (or rightmost derivation).
Having both leftmost and rightmost derivation can not imply ambiguity.