Octal literals in C

When we initialize a value by putting '0' before a number, the number is treated as octal. For instance '10' is read as 10 but '010' is read as 8. Octal numbers are the numbers with base 8 and octal literals are used to represent the octal integer values

Example

Input : 0101
Output : 65

Input : 01010
Output : 520

Examples of Octal Literals

Example 1

x = 65

Example 2

x = 16

Example 3

As the octal number system only have 8 digits, we cannot use 8 and 9 numbers as a digit in octal literal.

Output

Compiler Error : 8 is not a valid digit in octal number.