> 1. What output does the following program fragment produce?
```c
i = 1;
while (i <= 128) {
	printf("%d ", i);
	i *= 2;
}
```

Output:
```
1 2 4 8 16 32 64 128
```

> 2. What output does the following program fragment produce?
```c
i = 9384
do {
	printf("%d ", i);
	i /= 10;
} while (i <= 128);
```

Output:
```
9384 938 93 9
```

> 3. What output does the following `for` statement produce?
```c
for (i = 5, j = i - 1; i > 0, j > 0; --i, j = i - 1)
	printf("%d ", i);
```