#---------------------------- search for key from given number ----------------------------

# -------- find one digit -------

num = int(input("Enter a numer : "))
key = int(input("Enter key to search :"))
while(num>0):
    ld = num % 10
    num = num//10
    if(ld == key):
        print(key,"exists!")
        break
if(ld != key):
    print(key,"does not exists.")

#---------------------------- search for key from given number ----------------------------

# -------- two digit -------

num = int(input("Enter a numer : "))
key = int(input("Enter key to search :"))
while(num>0):
    ld = num % 100
    num = num//10
    if(ld == key):
        print(key,"exists!")
        break
if(ld != key):
    print(key,"does not exists.")

#---------------------------- search for key from given number ----------------------------

# -------- find three digit -------

num = int(input("Enter a numer : "))
key = int(input("Enter key to search :"))
while(num>0):
    ld = num % 1000
    num = num//10
    if(ld == key):
        print(key,"exists!")
        break
if(ld != key):
    print(key,"does not exists.")

#---------------------------- search & count for key from given number -----------------------

num = int(input("Enter a number: "))
key = int(input("Enter key to search: "))
count = 0

while num > 0:
    ld = num % 10     # n % 100 for two digits
    num = num // 10
    if ld == key:
        count += 1

if count > 0:
    print(key, "exists!")
    print("Repeats for", count, "times")
else:
    print(key, "does not exist.")