n,*A = map(int,open(0).read().split())
ans = []
for k in range(30)[::-1]:
  r = 0
  while r<n and ~A[r]>>k&1:
    A[r] += 1<<k
    r += 1
  if r:
    ans.append((1,r,1<<k))
  A.sort()
print(len(ans))
for e in ans:
  print(*e)