use proconio::input;
use ac_library::Segtree;
use ac_library::Max;

fn main(){
    input!{
        n: usize,
        q: usize,
        a: [i32; n],
        qs: [(usize, i32); q],
    }

    let mut seg = Segtree::<Max<i32>>::new(n);
    for i in 0..n{
        seg.set(i, a[i]);
    }
    for (c, x) in qs{
        if c == 1{
            let i = seg.max_right(0, |v| v <= &x);
            if i == n{
                println!("{}", -1);
            }else{
                println!("{}", i+1);
                seg.set(i, i32::MIN);
            }
        }else{
            let i = seg.min_left(n, |v| v <= &x);
            if i == 0{
                println!("{}", -1);
            }else{
                println!("{}", i);
                seg.set(i-1, i32::MIN);
            }
        }
    }
}