+ محدودیت زمان: ۱ ثانیه + محدودیت حافظه: ۲۵۶ مگابایت ---------- Ant and Ant-eater have got two arrays, each consisting of $1$ to $N$’s permutation. They want to play a game, the goal of the game is making the arrays similar. In each turn one can remove a single integer from his array. If both play optimally, find out the minimum number of turns it takes to finish the game. # ورودی The first line of input shows the number of test cases $T$. Each test case will contain 3 lines. The first line contains a single integer $N$ indicating the length of permutations. $$1 \leq N \leq 100 \, 000$$ Second and third line each will contain $N$ space separated integers indicating the numbers in permutations A and B respectively. # خروجی For each test case, print a single integer in a line, the minimal number of turns to finish the game. # مثال‌ها ## ورودی نمونه ۱ ``` 3 4 1 2 3 4 4 3 2 1 4 1 2 3 4 1 2 4 3 5 4 2 3 5 1 4 5 1 3 2 ``` ## خروجی نمونه ۱ ``` 6 2 4 ``` First test case: + Ant’s: $\{1, 2, 3, 4\} \to \{1, 3, 4\} \to \{1, 4\} \to \{4\}$ + Ant-eater’s: $\{4, 3, 2, 1\} \to \{4, 3, 1\} \to \{4, 1\} \to \{4\}$