Mathematics: use four zeros and five ones to form a nine digit number as required. Read only one number of zeros; (). Read only two numbers of zeros; () Mathematics: use four zeros and five ones to form a nine digit number as required. Read only the number of one zero; (). Read only the number of two zeros; (). Read only the number of none of zeros; ()

Mathematics: use four zeros and five ones to form a nine digit number as required. Read only one number of zeros; (). Read only two numbers of zeros; () Mathematics: use four zeros and five ones to form a nine digit number as required. Read only the number of one zero; (). Read only the number of two zeros; (). Read only the number of none of zeros; ()

111100001 110011001 111110000