import sys
input = sys.stdin.readline

K=int(input())
D=list(map(int,input().split()))

D.sort()

E=[]
S=[]
E.append((1,3,D[0]//2))
E.append((2,3,D[0]//2))
S=[1,2]
now=D[0]//2
nownode=3
for i in range(1,len(D)):
    x=D[i]//2
    E.append((nownode,nownode+2,x-now))
    E.append((nownode+1,nownode+2,x))
    S.append(nownode+1)
    nownode+=2
    now=D[i]//2
    
    
    
    
print(len(E)+1)
for x,y,w in E:
    print(x,y,w)

print(len(S))
print(*S)