str = input()
aaa = input()
split_first = aaa.split()
head = int(split_first[0])
foot = int(split_first[1])


#print(str)
#print(aaa)

subHead =  str[head:head]
subFoot =  str[foot:foot]

if head > 0:
  headStr = str[0:head]
else:
  headStr = "" 

if (foot - head) >1 :
  centStr =  str[head+1:foot-1]
else:
  centStr =  ""

if foot <  len(str):
  footStr = str[foot+1:len(str)]
else:
  footStr = ""

print("aa")
print(headStr + subHead+  centStr  + subFoot+ footStr)


#print(first#)
#leng= (len(first))
#lengheaf= (len(first)//2)
#lengheaf= (leng//2)
#print(lengheaf)

#print("比較開始")
#print(text[0: lengheaf])
#print(text[lengheaf:leng])

#if text[0: lengheaf] == text[lengheaf:leng]:
#if first[0: lengheaf] == first[lengheaf:leng]:
#    print("YES")
#else:
#    print("NO")