Integer data type

Integer variables are stored in the form of 16 bits (2 bytes) ranging from -32768 to 32767. The type declaration character of an integer is a percent sign (%).

Long data type

Long integer variables are stored as 32-bit (4 bytes) signed values ranging from -2,147,483,648 to 2,147,483,647. The type declaration character of Long is ampersand; )。

Just change all Integer to Long. If you need a larger number, you can delete this type.