3. 4. 5. 6. 7. 8. 9. 10. 11. 12.
"+\ ": 1 - _ 2 - 12 3 - - 4 - 5 - --- - 6 - - - 7 - ... 37 - - - 38 - 200 39 - - -
"----- + ": 1 - --- , , 2 - --- ... 6 - --- 7 - --- 10 8 - --- - 9 - --- 10 - --- -... 48 - - 5-6 49 - 50 -