For each positive integer n, the quantity $$s_n$$ is defined such that $$s_{n+2} = {s_n}^2 - s_{n+1}$$. In addition, $$s_2 = 1$$.
In the table, select values for $$s_1 $$ and $$s_4 $$ that are jointly compatible with these conditions. Select only two values, one in each column.