Integer to Hexadecimal Conversion

Given a non-negative integer (n) where (0 \le n \le 4294967295), convert it to its hexadecimal representation using lowercase letters. The output should not include any prefix (such as (0x)).

For example, if (n = 26), the output should be (\texttt{1a}); if (n = 255), it should be (\texttt{ff}); and if (n = 4294967295), it should be (\texttt{ffffffff}).

inputFormat

The input consists of a single line containing one non-negative integer (n).

Example:
26

outputFormat

Output the hexadecimal representation of (n) in lowercase letters.## sample

26

1a