Are you able to solve this equation?

**Rules:**

The following math operators are allowed: Square Root, Plus, Minus, (, ), Division, Multiplication, Factorial, Absolute Signs, Floor, Ceiling.

You may not use math operators with other numbers (e.g ^2 is not allowed, although square root, ^0.5, is allowed).

**Additional Rule:**

You can only add math operators to the left side of the equation.

Answer

4