from src.misc.DeletableHeapq import DeletableHeapq

n, Q = map(int, input().split())
hq1 = DeletableHeapq()
hq2 = DeletableHeapq()
S = [""] * 4001
tf = [False] * 10000
dic = {}


for _ in range(Q):
    query = input().split()
    if query[0] == "1":
        s, r = query[1:]
        r = int(r)
        S[r] = s
        dic[s] = r
        hq1.push(r)
        tf[r] = True
    elif query[0] == "2":
        x = int(query[1])
        n -= x
    else:
        s, x = query[1:]
        x = int(x)
        n += x
        r = dic[s]
        if tf[r]:
            tf[r] = False
            hq1.remove(r)
            hq2.push(r)

    ans = []
    while n < len(hq1) + len(hq2):
        if hq1:
            r = hq1.pop()
            ans.append(r)
        else:
            r = hq2.pop()
            ans.append(r)

    ans.sort()
    for r in ans:
        print(S[r])