N = int(input())
A = list(map(int, input().split()))
ans = []
while A[0] < A[-1]:
    d = (A[-1] + A[0] + 1) // 2 - A[0]
    l = 1
    r = 0
    for i in range(N - 1):
        if A[i] + d <= A[-1]:
            r = i + 1
            A[i] += d
        else:
            break
    ans.append((l, r, d))
    A.sort()
print(len(ans))
for a in ans:
    print(*a)