import sys
input = sys.stdin.readline

N=int(input())
A=list(map(int,input().split()))

ANS=[]

for i in range(29,-1,-1):
    ind=-1
    for j in range(N):
        if A[j] & (1<<i) == 0:
            ind=j

    if ind!=-1:
        ANS.append((1,ind+1,(1<<i)))

    for j in range(ind+1):
        A[j]|=(1<<i)

    A.sort()
    
print(len(ANS))
for l,r,c in ANS:
    print(l,r,c)