use std::collections::VecDeque;

fn main() {
    let mut n = String::new();
    std::io::stdin().read_line(&mut n).ok();
    let n: usize = n.trim().parse().unwrap();
    let mut a = String::new();
    std::io::stdin().read_line(&mut a).ok();
    let mut a: Vec<usize> = a.trim().split_whitespace().map(|s| s.parse().unwrap()).collect();
    let mut b = String::new();
    std::io::stdin().read_line(&mut b).ok();
    let b: Vec<usize> = b.trim().split_whitespace().map(|s| s.parse().unwrap()).collect();

    let mut checked = vec![false; n];
    let mut queue = VecDeque::new();
    for i in 0..n {
        if i == 0 {
            if a[0] >= b[0] || 1 == n || b[0] < a[1] {
                queue.push_back((a[0], b[0], 0));
                checked[i] = true;
            }
        } else if i == n-1 {
            if a[i] <= b[i] || a[i-1] < b[i] {
                queue.push_back((a[i], b[i], i));
                checked[i] = true;
            }
        } else {
            if a[i-1] < b[i] && b[i] < a[i+1] {
                queue.push_back((a[i], b[i], i));
                checked[i] = true;
            }
        }
    }
    let mut operates = Vec::with_capacity(n);
    while let Some((start, end, idx)) = queue.pop_front() {
        operates.push((start, end, idx));
        a[idx] = end;
        if idx > 0 && !checked[idx-1] {
            if b[idx-1] < a[idx] && (idx == 1 || a[idx-2] < b[idx-1]) {
                queue.push_back((a[idx-1], b[idx-1], idx-1));
                checked[idx-1] = true;
            }
        }
        if idx+1 < n && !checked[idx+1] {
            if a[idx] < b[idx+1] && (idx+2 == n || b[idx+1] < a[idx+2]) {
                queue.push_back((a[idx+1], b[idx+1], idx+1));
                checked[idx+1] = true;
            }
        }
    }
    let mut result = vec![];
    for &(start, end, idx) in operates.iter() {
        for _ in 0..start.max(end)-start.min(end) {
            if start < end {
                result.push((idx+1, 'R'));
            } else {
                result.push((idx+1, 'L'))
            }
        }
    }
    println!("{}", result.len());
    for &(i, c) in result.iter() {
        println!("{} {}", i, c);
    }
}