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#1
# stroka = input()
# print(stroka[2]) # по индексу выводим 2 символ
# print(stroka[::-2]) # выводим предпоследний символ строки
# print(stroka[0:5:]) # выводим первые 5 символом
# print(stroka[0:-2:]) # выводим все до предпоследнего т.к. последний -1, то -2 - это предпоследний
# print(stroka[::2]) # выводим все четные, т.к. 0 - 2 - 4 - 6
# print(stroka[1::2]) # выводим все нечетные начиная с 1, 1 - 3 - 5 - 7 - 9
# print(stroka[::-1]) # вывод задом на перед ход -1
# print(stroka[-1::-2]) # вывод наоборот через 1
# print(len(stroka))
#2
# print(input().count(" ")+1)
#3
# stroka3 = input()
# print(stroka3[(len(stroka3)+1)//2::] + stroka3[:(len(stroka3)+1)//2])
#4
# print(stroka4[stroka4.find(" ")+1::] + " " + stroka4[0:stroka4.find(" "):])
#5
# stroka4 = input()
# counter = 0
# val1 = 0
# for i in range(len(stroka4)):
# if stroka4[i] =="f":
# counter+=1
# if counter==2:
# val1 = i
# break
# if counter == 0:
# print(-2)
# elif counter == 1:
# print(-1)
# elif counter == 2:
# print(val1)
#6
# stroka1 = input()
# counter = 0
# for i in stroka1:
# if i =="f"
# counter += 1
# if counter == 1:
# print(stroka1.find("f"))
# else: print(stroka1.find("f"), stroka1.rfind("f"))
#7
# stroka5 = input()
# print(stroka5[:stroka5.find("h"):] + stroka5[stroka5.rfind("h")+1::])
#8
# stroka5 = input()
# val1 = stroka5[stroka5.find("h")+1:stroka5.rfind("h"):]
# print(val1[::-1])
#9
# stroka6 = input()
# val1 = stroka6[stroka6.find("h")+1:stroka6.rfind("h"):]
# val2 = stroka6[:stroka6.find("h")+1:]
# val3 = stroka6[stroka6.rfind("h")::]
# print(val3+val1*2+val2)
#10
# stroka7 = input()
# c = ""
# for i in range(len(stroka7)):
# if stroka7[i] == "1":
# c = stroka7.replace("1", "one")
# print(c)
#11
# c=""
# stroka8 = input()
# stroka8 = stroka8.replace("@",c)
# print(stroka8)
#12
# stroka9 = input()
# c = "H"
# val1 = stroka9.find("h")
# val2 = stroka9.rfind("h")
# for i in range(val1,val2):
# if stroka9[i] == "h":
# new_s = stroka9[i].replace("h", c)
# print(stroka9[:val1:] + new_s + stroka9[val2+1::])
#13
# stroka10 = input()
# strokaM = ""
# for i in range(len(stroka10)):
# strokaM += stroka10[i]
# strokaM += "*"
# print(strokaM[:-1:])
# #14
# stroka11 = input()
# s = ""
# for i in range(len(stroka11)):
# if i % 3 != 0:
# s+=stroka11[i]
# print(s)Editor is loading...
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