from dataclasses import dataclass

N, M = map(int, input().split())
e = list(map(int, input().split()))
v, w = map(list, zip(*[map(int, input().split()) for _ in range(M)]))

@dataclass
class Data:
    v: int
    use: int
    prev: 'Data'

sum_v, sum_w = [0]*(1<<M), [0]*(1<<M)
for S in range(1<<M):
    for j in range(M):
        if S>>j&1:
            sum_v[S] += v[j]
            sum_w[S] += w[j]

now = [Data(0, 0, None) for _ in range(1<<M)]
for i in range(N):
    nxt = [Data(0, 0, None) for _ in range(1<<M)]
    for S in range(1<<M):
        U = (1<<M)-1-S
        T = U
        while True:
            if sum_w[T] <= e[i] and now[S].v+sum_v[T] > nxt[S|T].v:
                    nxt[S|T].v = now[S].v+sum_v[T]
                    nxt[S|T].use = T
                    nxt[S|T].prev = now[S]
            if T == 0:
                break
            T = (T-1)&U
    now = nxt

m = max(now[S].v for S in range(1<<M))
S = [S for S in range(1<<M) if now[S].v == m][0]
cur = now[S]
ans = []
while cur.prev:
    ans.append([i+1 for i in range(M) if cur.use>>i&1])
    cur = cur.prev
if len(ans) != N:
    ans += [[]]*(N-len(ans))
print(m)
for a in ans[::-1]:
    print(len(a), *a)