import sys input = sys.stdin.readline from random import randint N,Q=map(int,input().split()) X=[int(input()) for i in range(N)] ANS=[] SET=set() for x in X: if x in SET: ANS.append((2,x)) else: ANS.append((1,x,x)) ANS.append((2,x)) SET.add(x) if len(ANS)>Q: print("No") else: while len(ANS)