1 #include <stdio.h>
2 
3 int common1;
4 int common2;
5 int common3;
6 static int common4;
7 
8 int data1 = 1;
9 int data2 = 2;
10 int data3 = 3;
11 static int data4 = 4;
12 
13 int foo()
14 {
15   common1 = 1;
16   common2 = 2;
17   common3 = 3;
18   common4 = 4;
19 
20   return data1 + data2 + data3 + data4 + common1 + common2 + common3 + common4;
21 }
22