public static int findNature ( int a , int b , int n ) {
  int [ ] seq = new int [ 100 ] ;
  seq [ 0 ] = a ;
  seq [ 1 ] = b ;
  for ( int i = 2 ;
  i <= n ;
  i ++ ) seq [ i ] = seq [ i - 1 ] + seq [ i - 2 ] ;
  if ( ( seq [ n ] & 1 ) != 0 ) return 1 ;
  else return 0 ;
}

public static int findNature ( int a , int b , int n ) { int [ ] seq = new int [ 100 ] ; seq [ 0 ] = a ; seq [ 1 ] = b ; for ( int i = 2 ; i <= n ; i ++ ) seq [ i ] = seq [ i - 1 ] + seq [ i - 2 ] ; if ( ( seq [ n ] & 1 ) != 0 ) return 1 ; else return 0 ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier)) (formal_parameter type: (integral_type) name: (identifier)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (local_variable_declaration type: (array_type element: (integral_type) dimensions: (dimensions)) declarator: (variable_declarator name: (identifier) value: (array_creation_expression type: (integral_type) dimensions: (dimensions_expr (decimal_integer_literal))))) (expression_statement (assignment_expression left: (array_access array: (identifier) index: (decimal_integer_literal)) right: (identifier))) (expression_statement (assignment_expression left: (array_access array: (identifier) index: (decimal_integer_literal)) right: (identifier))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (expression_statement (assignment_expression left: (array_access array: (identifier) index: (identifier)) right: (binary_expression left: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))))))) (if_statement condition: (parenthesized_expression (binary_expression left: (parenthesized_expression (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (decimal_integer_literal))) right: (decimal_integer_literal))) consequence: (return_statement (decimal_integer_literal)) alternative: (return_statement (decimal_integer_literal)))))