n=int(input())
a=list(map(int,input().split()))
print(30)
for i in range(30):
	l=0
	while l<n and (a[l]>>i)&1==0:
		l+=1
	print(1,l if l>0 else n,1<<i)
	for j in range(l):
		a[j]+=1<<i
	a.sort()