### Comment:
Pick two strikes. Buy 100 calls at the higher strike and sell 100 puts at the lower strike. Then buy 100 puts at the lower strike with the same expiry, and sell 100 calls at the higher strike. On Robinhood, the end result is no change in margin requirements, just the cash difference from the trades. So, just repeat it as many times as you can. 
  
 Make sure to log in the next morning to check that Robinhood hasn't decided to make your positions disappear.

### REPLY:
Ok, now how do I make that box inside another box.

### END.