# while a==0 :# 반복할명령## range(a) -> 0 ~ a미만 1간격 ( 0 ~ a-1)# range(a, b) -> a ~ b미만 1간격 ( a ~ b-1)# range(a,b,2) -> a ~ b미만 2간격# a=5# for i in range(a) :# print(i)## while True :## while True :# a=input()# a=int(a)# if a!=0 :# print(a)# if a==0 :# break# a=input()# a=int(a)# for i in range(a,0,-1) :# print(i)# a=input()# a=int(a)# for i in range(a-1,-1,-1) :# print(i)## a=input()# for i in range()# print(i)# 'a' 97# 'b' 98# 'c' 99# ...## a = input()## print(ord(a)) # a의 아스키코드## b = int(input())## print(chr(b)) # b의 아스키코드를 가진 문자로 변환# a=input()# for i in range(ord('a'),ord(a)+1) :# print(chr(i))# a=int(input())# for i in range(a+1) :# print(i)# a=int(input())# for i in range(a+1) :# print(i)# a=int(input())# s=0# for i in range(1,a+1) :# if i%2==0 :# s=s+i# print(s)# while True :# a=input()# print(a)# if a=='q' :# break# a=int(input())# s=0# for i in range(a) :# s=s+i# if s>=a :# print(i)# breaka=int(input())s=int(input())for i in range(1,a+1) : for j in range(1,s+1) : print(i,j)
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