text: Check the sequence of A , B in both strings str1 and str2
code: for c in str1 : NEW_LINE INDENT if ( c != ' C ' ) : NEW_LINE INDENT s1 += c NEW_LINE DEDENT DEDENT for c in str2 : NEW_LINE INDENT if ( c != ' C ' ) : NEW_LINE INDENT s2 += c NEW_LINE DEDENT DEDENT