# a, b, c = map(int,input().split())
# tot = a+b+c
# tot=tot//100
# if tot%2==0:
# print("대박")
# else:
# print("그럭저럭")
# a,b= map(float,input().split())
# tot=0
# if a<150:
# tot=a-100
# elif 150<=a<160:
# tot=(a-150)/2+50
# else:
# tot=(a-100)*0.9
#
# bi = (b-tot)*100/tot
# if bi<=10:
# print("정상")
# elif 10<bi<=20:
# print("과체중")
# else:
# print("비만")
# x[0] x[1] x[2] x[3] x[4] a[5] a[6] a[7] a[8]
# '1' '0' '+' '1' '0'
# x = input()
# if x.count('+')==1 :
# op = '+'
# index = x.index('+')
# elif x.count('-')==1 :
# op='-'
# index = x.index('-')
# elif x.count('*')==1 :
# op='*'
# index = x.index('*')
# else:
# op='/'
# index = x.index('/')
# a = x[:index]
# b = x[index+1:]
#
# a = int(a)
# b = int(b)
#
# if op=='+' :
# tot=a+b
# print(tot)
# elif op=='-' :
# tot=a-b
# print(tot)
# elif op=='*':
# tot=a*b
# print(tot)
# else:
# a=float(a)
# b=float(b)
# tot=a/b
# print('%.2f'%tot)
# 반복문 for or while
# while 조건식 :
# 명령
# range(5) 0 ~ 5미만 1간격 0 1 2 3 4
# range(2,5) 2 ~ 5미만 1간격 2 3 4
# range(1,10,2) 1이상 10미만 2간격 1 3 5 7 9
# range(5,1,-1) 5이하 1초과 -1간격 5 4 3 2
# for i in range(5,1,-1) :
# print(i)
# x = 'hello'
# for i in x :
# print(i)
# for i in range(5) :
# if i%2==0 :
#
# for i in range(1,101):
# print(i,end=' ')
# n=int(input())
# for i in range(1,n+1):
# print(i,end=' ')
# a,b=map(int,input().split())
# for i in range(a,b+1):
# if i%2==1:
# print(i,end=(" "))
# n=int(input())
# tot=0
# for i in range(1,n+1):
# tot=tot+i
# if i==n:
# print(tot)