Integer literal suffixes in C

The Suffixes of the integer literal indicates the type in which it is to be read.
These are represented in many ways according to their data types:
- int: No suffix is required because integer constant is by default assigned as an int data type.
- unsigned int: character u or U at the end of an integer constant.
- long int: character l or L at the end of an integer constant.
- unsigned long int: character ul or UL at the end of an integer constant.
- long long int: character ll or LL at the end of an integer constant.
- unsigned long long int: character ull or ULL at the end of an integer constant.