N = int(input())
A = list(map(int, input().split())) 
ANS = []
for i in reversed(range(30)):
    p = 2**i
    for j in range(N):
        if A[j] & p == 0:
            A[j]+=p
        else:
            break
    else:
        j+=1
    if j:
        ANS.append([1,j,p])
    A.sort()
print(len(ANS))
for a in ANS:
    print(*a)