Laske, or find the answer to:

[[$ 1 + 1 + 1 + 1 \cdot 0$]]
=

[[$ (1 + 1 + 1 + 1) \cdot 0$]]
=

[[$ 6 : 3 \cdot 2 $]]
=

[[$ (6 : 3) \cdot 2 $]]
=

[[$ 6 : (3 \cdot 2) $]]
=

[[$ 8 - 7^2 $]]
=

[[$ (8 - 7)^2 $]]
=