TRANSFORM

You are given two integer sequences of length $N: a1,a2,..,aN$ and $b1,b2,.,bN$. Determine if we can repeat the following operation zero or more times so that the sequences $a$ and $b$ become equal. Operation: Choose two integers $i$ and $j$ (possibly the same) between $1$ and $N$ (inclusive), then perform the following two actions simultaneously: 1)Add $2$ to $ai$. 2)Add $1$ to $bj$. ###Input