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def tercero():    str=raw_input("Escriba: ")    l=str.split()    a=list(l[0])    b=list(l[1])    l=a+b    a=range(5,1,1)    for i in range(len(l)):        if i%2==0 or i==0:            print type(a)            print a            a=a.append(l[i])    print atercero()