1 -123456789 2 -1234567890 3-1234567890 4 -987654321 5-987654321 6 -987654321.2345 7 -987654321.9876 8 123456789 9 123456789 10123456789 11 123456789.1234 12 123456789.1234 13 987654321 14987654321 15 987654321.7654 16 987654321.765400 17