# Test

# Case 0

```
? 0
0
```

# Case 1

```
? 1
1
```

# Test 1

```
? 2
2
```

# Test 2

```
? 7
7
```

# Test 3

```
? 7
7
```

# Test 4

```
? 11
11
```

# Test 5

```
? 64
64
```