c variables are case sensitive

C Variables

Variables are containers for storing data values, like numbers and characters.

In C, there are different types of variables (defined with different keywords), for example:

int – stores integers (whole numbers), without decimals, such as 123 or -123
float – stores floating point numbers, with decimals, such as 19.99 or -19.99
char – stores single characters, such as 'a' or 'B'. Characters are surrounded by single quotes