126export.txt

After Reading 126import.txt: 
1+1i
2+2i
3.3+3.4i
4.4-4.5i
-5.5-5.6i
-6+0i
0+7i
0-8i


After appending Complex Object: 
1+1i
2+2i
3.3+3.4i
4.4-4.5i
-5.5-5.6i
-6+0i
0+7i
0-8i
3+4i


After deleting Complex Objects: 
1+1i
3.3+3.4i
4.4-4.5i
-5.5-5.6i
-6+0i
0+7i
0-8i


After sorting Complex Objects: 
1+1i
3.3+3.4i
-6+0i
4.4-4.5i
0+7i
-5.5-5.6i
0-8i