def test_7(): assert allStar("1234") == "1*2*3*4"
def test_5(): assert allStar("3.14") == "3*.*1*4"
def test_6(): assert allStar("Chocolate") == "C*h*o*c*o*l*a*t*e"
def test_4(): assert allStar("") == ""
def test_3(): assert allStar("a") == "a"
def test_2(): assert allStar("ab") == "a*b"
def test_1(): assert allStar("abc") == "a*b*c"
def test_0(): assert allStar("hello") == "h*e*l*l*o"