finish go first version. Need bigger matrix to compare concurrence
finish go first version. Need bigger matrix to compare concurrence

ccqpein/Arithmetic-Exercises,ccqpein/Arithmetic-Exercises,ccqpein/Arithmetic-Exercises,ccqpein/Arithmetic-Exercises,ccqpein/Arithmetic-Exercises,ccqpein/Arithmetic-Exercises,ccqpein/Arithmetic-Exercises