def exe(op):
    print(op[1::2])
    print(op[0::2])
    print("-----------------------------------")

    print(op.count(" "))
    print("-----------------------------------")

    print(op.count("a"))
    print("-----------------------------------")

    op2 = "*" + op[2:]
    print(op2)
    print("-----------------------------------")

    op2 = op [:-3] + "+++"
    print(op2)
    print("-----------------------------------")

    for i in op2:
        print(i)
    print("\n")
    for i in range(len(op2)):
        print(op2[i])
    print("-----------------------------------")

    op3 = op.replace(" ", "-")
    print(op3)
    print("-----------------------------------")

    print(op.index("i"))


first_name = input("Enter first name: ")
last_name = input("Enter last  name: ")

name1 = first_name.lower() + " " + last_name.lower()
op = name1
exe(op)

name2 = name1.upper()
op = name2
exe(op)