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# Practical 5: Kangaroo String

string1 = input("Enter main string: ")
string2 = input("Enter kangaroo string: ")

i = 0
j = 0

while i < len(string1) and j < len(string2):
    if string1[i] == string2[j]:
            j += 1
                i += 1

                if j == len(string2):
                    print("It is a Kangaroo String (Subsequence)")
                    else:
                        print("It is NOT a Kangaroo String")