MEX of XOR

You are given $3$ integers $L$, $R$ and $X$. Consider the set $S = \{L \oplus X, (L + 1) \oplus X, ... ,R \oplus X\}$, where $\oplus$ represents the Bitwise XOR operator. Find the MEX$^{\dagger}$ value of this set $S$. $^{\dagger}$ The MEX of a set $S$ is the minimum non-negative integer which is not present in $S$. ### Input - The first line of input will contain a single integer $T$, denoti