We are required to find the parabola $C + Dt + Et^2$ that comes closest to the values $\mathbf{v} = (0, 2, 2, 5)$ at the times $\mathbf{t} = (0, 1, 3, 4)$. What is $F = \mathrm{Round}\{|C + D + E| \times 256\} \% 5$? ($|.|$ is the absolute value. % is the modulo operation. Round{z} rounds z to the nearest integer.)