From Yobit:

This is Raise Only Market, sells are only allowed to be placed higher than the current lowest sell.

• max wall size: 0.01000001 btc
• max sell order size: 0.01000001 btc
• minimal step between new orders: 0.00000100
• max 2 open for sell allowed for ROM market

This script is used to figure out what the next sell orders should be.