more comments, rm useless lines and more readable output. t is about 0.2 and need to be confirmed
more comments, rm useless lines and more readable output. t is about 0.2 and need to be confirmed

yungyuc/solvcon,yungyuc/solvcon,yungyuc/solvcon,solvcon/solvcon,yungyuc/solvcon,solvcon/solvcon,solvcon/solvcon,solvcon/solvcon,yungyuc/solvcon,yungyuc/solvcon,solvcon/solvcon,solvcon/solvcon