private boolean METHOD_1 ( int i , int j ) { return ( ( i >= 0 ) && ( i < ( num ) ) ) && ( ( j >= 0 ) && ( j < ( num ) ) ) ; }
private boolean METHOD_1 ( int i , int j ) { return ( ( i >= 1 ) && ( i <= ( num ) ) ) && ( ( j >= 1 ) && ( j <= ( num ) ) ) ; }