Provides simple io for reading and writing from stdin and stdout.
```rust use soiio::{read, readvec, readveclen};
fn main() {
// reads the first int from stdin
let n: i32 = read!();
// reads the next 3 ints from stdin (on the same line)
let v: Vec
Example input:
text
1 2 3 4 5 6 7 8 9
Example output:
text
n: 1, v: [2, 3, 4], v2: [5, 6, 7, 8, 9]
```