Условие:
7 + 7 + 7 = 7 * ☐;
1 + 1 + ☐ = 1 * 3;
☐ * ☐ = 2 + 2 + 2 + 2;
☐ * ☐ = 0 + 0 + 0 + 0.

7 + 7 + 7 = 7 * 3;
1 + 1 + 1 = 1 * 3;
2 * 4 = 2 + 2 + 2 + 2;
0 * 4 = 0 + 0 + 0 + 0.

Условие:7 + 7 + 7 = 7 * ☐;1 + 1 + ☐ = 1 * 3;☐ * ☐ = 2 + 2 + 2 + 2;☐ * ☐ = 0 + 0 + 0 + 0.