Submission #3996430

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Source Code Expand

# coding:utf-8

import sys
# from collections import Counter, defaultdict

INF = float('inf')
MOD = 10 ** 9 + 7

def LI(): return [int(x) for x in sys.stdin.readline().split()]
def LS(): return sys.stdin.readline().split()
def I(): return int(sys.stdin.readline())
def S(): return input()


N = I()

if N % 2 == 0:
    print('No')
else:
    print('Yes')
    print(N)
    for i in range(N):
        print(2, i + 1, (i + 1) % N + 1)

Submission Info

Judge Result