Can someone test this code for me please?

I do not have access to minecraft right now, but I am working on a semi-datapack thing. I just want to see if, this code outputs the correct number. 
scoreboard players set b registers 3
scoreboard players operation a registers /= b registers
scoreboard players operation c registers += a registers
scoreboard players set b registers 6
scoreboard players operation a registers *= b registers
scoreboard players operation c registers += a registers
scoreboard players set a registers 10
scoreboard players operation a registers += b registers
scoreboard players operation c registers += a registers

The c register should output 20