Test inkremetacie 2

int a = 1, b = 2;
++a - ++b;          // a = 2, b = 3, -1
a++ - ++b;          // a = 2, b = 4, -2
++a + ++b;          // a = 4, b = 5, 9
++a + b++;          // a = 5, b = 5, 10
a++ + ++b;          // a = 5, b = 7, 12
...                 // a = 6, b = 7