def eisagogi():
    a=1
                                #on="a"
                                #ep="b"
    while a>0:                  #on!="" or ep!="":
        on=input("Dose onoma i enter gia telos: ")
        if on=="":
            break
        ep=input("Dose epitheto i enter gia telos: ")
        if ep=="":
            break
        til=int(input("Dose tilefono i enter gia telos: "))
        global pelates
        global kodikoi
        global pelatis
        global kod
        kod+=1
        kodikoi+=[kod]
        pelatis+=[str(kod)+" "+ep+" "+" "+on+" "+str(til)]
        pelates+=["Kodikos: "+str(kod)+", "+"Epitheto: "+ep+", "+"Onoma: "+on+", ""Tilefono: "+str(til)]
def emfanisi():
        for i in range (len(pelatis)):
            print (pelatis[i])
def kartela():
    kodikos=int(input("Doste ton kodiko tou pelati: "))
    if kodikos not in kodikoi:
        print ("lathos kodikos epistrofi sto menu")
    else:
        print (pelates[kodikos-100])
epana=1
kod=99
pelatis=[]
kodikoi=[]
pelates=[]
while (epana!=0):
    print ("menu")
    print ("patiste 1 gia eisagogi")
    print ("patiste 2 gia emfanisi")
    print ("patiste 3 gia katreles")
    print ("patiste 0 gia telos")

    epilogi=int(input("Epilogi: "))
    if epilogi==1:
        eisagogi()
    if epilogi==2:
        emfanisi()
    if epilogi==3:
        kartela()
    if epilogi==0:
        epana=0