Given the task definition and input, reply with output. In this task you will be given an arithmetic operation in Italian and you have to find its answer. The operations 'addition' and 'subtraction' have been replaced with their italian translations i.e you need to perform addition when you see 'aggiunta' and subtraction in case of 'sottrazione'.

1939 aggiunta 221 sottrazione 4624 aggiunta 4240 sottrazione 3881 aggiunta 9193 sottrazione 5216

1872