N=int(input())
A=list(map(int,input().split()))
result=[]
for k in range(29,-1,-1):
  count=0
  for i in range(N):
    if (A[i]>>k)&1:
      break
    count+=1
  if count>0:
    result.append((1,count,2**k))
    for i in range(count):
      A[i]+=2**k
    A.sort()
print(len(result))
for i in range(len(result)):
  a,b,c=result[i][:]
  print(a,b,c)