1 ..........................................................................................................................3 1.1 ........................................................................................................3 1.2 ................................................................................3 1.3 ........................................................................................3 1.4 ....................................................................................4 1.5 ............................................................................4 ..................................................................................................................4 2.1 ............................................................................................4 2.2 ....................................................................................................4 2.3 ............................................................................................5 2.4 ....................................................................................5 2.5 ....................................................................................6 2.6 ....................................................................................6 ..........................................................................................................7 A ..........................................................................................................7 3.1 ....................................................................................7 3.2 ............................................................................................7 3.3 ....................................................................................7 3.4 ................................................................................8 3.5 ................................................................................8 3.6 .............