( 1000( 999( 998()( 997()()))( 996( 995()( 994( 978( 978()())())( 993()())))( 992()())))( 991( 989( 988( 978()( 978()()))())( 987( 986()())( 985( 984( 978()())())( 978()()))))( 983( 982()( 981()()))( 980( 979()())( 978()())))))