while True :
num = int ( input ( "Escolha umas das duas opcoes abaixo!\n [1] Metro para Centimetro\n [2] Centimetro para Metro\n [3] Sair\n " ) )
if num == 1 :
met = input ( "\n Digite o metro\n " )
result = float ( met) * 100
print ( "\n A resposta e >> " + str ( result) + " centimetros\n \n " )
elif num == 2 :
cen = input ( "\n Digite o centimetro\n " )
result = float ( cen) / 100
print ( "\n A resposta e >> " + str ( result) + " metros\n \n " )
elif num == 3 :
print ( "\n Espero ter sido util (:\n \n " )
break
else :
print ( "\n Opcao invalida\n \n " )
#https://pt.stackoverflow.com/q/189716/101
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