1 123456789 2 -123456789 3 123456789 4123456789 5 -1234567890 6-1234567890 7 123456789.1234 8 123456789.1234 9 -987654321 10 987654321 11-987654321 12987654321 13 -987654321.2345 14 987654321.7654 15 987654321.765400 16 -987654321.9876 17