Golenischeva-Kumuzova T.I.

Yura has a calculator that allows multiplying a number by 3, adding 3 to a number, or (if the number is divisible by 3) dividing the number by 3. How can Yura use this calculator to get from the number 1 to the number 11?
Comment. Note that on Yura's calculator, any number can be increased by $1: (x \cdot 3+3): 3=x+1$. Therefore, in principle, from one, any natural number can be obtained on it.

## Answer

For example, $((1 \cdot 3 \cdot 3 \cdot 3)+3+3): 3=11$ or $(1 \cdot 3+3): 3+3+3+3=11$.