K = int(input())
D = list(map(int, input().split()))

S = [0]
edge = []
for i in range(150):
    edge.append((i, i+1, 1))
idx = 151
for d in D:
    edge.append((d//2, idx, d//2))
    S.append(idx)
    idx += 1

print(len(edge))
for u, v, w in edge:
    print(u+1, v+1, w)
print(len(S))
print(*[s+1 for s in S])