k = int(input())
assert 1 <= k <= 150
D = list(map(int, input().split()))
D.sort()
assert all(d % 2 == 0 and 2 <= d <= 300 for d in D)
assert len(D) == k
assert len(set(D)) == k

D = [0] + D

print(2 * k + 1)
E = []
for i in range(k):
    print(i + 1, i + 2, (D[i + 1] - D[i]) // 2)
    print(i + 2, k + i + 2, D[i + 1] // 2)

print(k + 1)
A = [1] + [i for i in range(k + 2, 2 * k + 2)]
print(*A)