8.3. Determine the real numbers $a_{1}, a_{2}, a_{3}, a_{4}$, which satisfy the equality

$$
\sqrt{a_{1}}+\sqrt{a_{2}-1}+\sqrt{a_{3}-2}+\sqrt{a_{4}-3}=\frac{1}{2} \cdot\left(a_{1}+a_{2}+a_{3}+a_{4}\right)-1
$$

Find the real numbers $a_{1}, a_{2}, a_{3}, a_{4}$ which satisfy the equality

$$
\sqrt{a_{1}}+\sqrt{a_{2}-1}+\sqrt{a_{3}-2}+\sqrt{a_{4}-3}=\frac{1}{2} \cdot\left(a_{1}+a_{2}+a_{3}+a_{4}\right)-1
$$