switch MUL and SUB
switch MUL and SUB

ckeenan/pyethereum,vaporry/pyethereum,ethereum/pyethereum,ebuchman/daoist_protocol,karlfloersch/pyethereum,holiman/pyethereum,inzem77/pyethereum,ddworken/pyethereum,shahankhatch/pyethereum,shahankhatch/pyethereum,pipermerriam/pyethereum,ethers/pyethereum,ethermarket/pyethereum,jnnk/pyethereum,pipermerriam/pyethereum,karlfloersch/pyethereum,ebuchman/daoist_protocol,ethereum/pyethereum,harlantwood/pyethereum