129000+800000-2000 =927000
503000-360000−200000360000-200000360000−200000 =343000
600000−450000600000-450000600000−450000+80000=230000
129000+800000-2000 =927000
503000-360000−200000360000-200000360000−200000 =343000
600000−450000600000-450000600000−450000+80000=230000