def query_shift(query_list, N_list):
    if query_list[0]==1:
        return query_1(query_list[1], N_list)
    elif query_list[0]==2:
        return query_2(query_list[1], N_list)
    elif query_list[0]==3:
        query_3(query_list[1])
    else:
        query_4(query_list[1], N_list)
    return N_list

def query_1(N_num, N_list):
    if N_num in N_list:
        if N_num+1 in N_list:
            dup_N_list = N_list[:N_list.index(N_num)]
            dup_N_list.append([N_num, N_num+1])
            if N_num+2 in N_list:
                dup_N_list.extend(N_list[N_list.index(N_num+2):])
            N_list = dup_N_list[0:]
        else:
            N_list[N_list.index(N_num)+1].insert(0, N_num)
            N_list.pop(N_list.index(N_num))
    else:
        for i in range(len(N_list)):
            if type(N_list[i])==list:
                if N_num in N_list[i]:
                    if N_num+1 in N_list:
                        N_list[i].append(N_num+1)
                        N_list.pop(i+1)
                        break
                    elif N_num+1 in N_list[i]:
                        break
                    elif type(N_list[i+1])==list and N_num+1 in N_list[i+1]:
                        N_list[i].extend(N_list[i+1])
                        N_list.pop(i+1)
                        break
    return N_list

def query_2(N_num, N_list):
    if N_num in N_list:
        pass
    else:
        for i in range(len(N_list)):
            if type(N_list[i])==list:
                if N_num in N_list[i] and N_num in N_list[i]:
                    copy_list = N_list[i][0:]
                    N_list.pop(i)
                    N_list.insert(i, copy_list[copy_list.index(N_num)+1:])
                    N_list.insert(i, copy_list[:copy_list.index(N_num)+1])
    for x in N_list:
        if type(x)==list:
            idx = N_list.index(x)
            if len(x)==1:
                N_list.pop(idx)
                N_list.insert(idx, x[0])
    return N_list

def query_3(N_num):
    N_dict[N_num]+=1

def query_4(N_num, N_list):
    ans = 0
    if N_num in N_list:
        print(N_dict[N_num])
    else:
        for i in range(len(N_list)):
            if type(N_list[i])==list:
                if N_num in N_list[i]:
                    for ii in N_list[i]:
                        ans+=N_dict[ii]
        print(ans)


N, Q = map(int, input().split())
ans_list = list(range(1,N+1))
N_cool_list = list(map(int, input().split()))
tapple_list = []
for i in range(N):
    tapple_list.append((ans_list[i], N_cool_list[i]))
N_dict = dict(tapple_list)
query_list = []
for i in range(Q):
    query_list.append(list(map(int, input().split())))
for x in query_list:
    ans_list = query_shift(x, ans_list)