Make a function that swaps the values that change the values
between the parameters as the following rule.
The functions swap takes 2, 3 or 4 parameters and these
functions are implemented as the overloading functions.
swap(int &, int &) : change the values each
other.
swap(int &, int &, int &) : change the value with the
order. [min, medium, max]
swap(int &, int &, int &, int &) : change the value
like circular-shift-right [A, B, C, D]...