diff --git a/src-light-master/master.cpp b/src-light-master/master.cpp
index 300ae74..8c8b442 100644
--- a/src-light-master/master.cpp
+++ b/src-light-master/master.cpp
@@ -1,14 +1,12 @@
 #include <string>
 
 #include "master.h"
+#include "paras.hpp"
 
-int main() {
-    printf("=====================================\n");
-
-
-    
-
+int main(int argc, char* argv[]) {
 
+    paras::parse(argc, argv);
+    opt->print_paras();
 
     return 0;
 }
\ No newline at end of file
diff --git a/src-light-master/paras.cpp b/src-light-master/paras.cpp
new file mode 100644
index 0000000..1ef5680
--- /dev/null
+++ b/src-light-master/paras.cpp
@@ -0,0 +1,56 @@
+#include <cstdio>
+#include <iostream>
+#include <string>
+
+#include "paras.hpp"
+#include "cmdline.h"
+
+paras* opt;
+ 
+void paras::print_paras() {
+    // print arguments
+    printf("------------ arguments ------------\n");
+
+    #define STR_PARA(N, S, M, D, C) \
+    printf("%-20s: %s\n", #N, OPT(N).c_str());
+    STR_PARAS
+    #undef STR_PARA
+
+    #define PARA(N, T, S, M, D, L, H, C) \
+    if (!strcmp(#T, "int")) printf("%-20s: %-10d\n", #N, OPT(N)); \
+    else printf("%-20s: %-10.2f\n", #N, OPT(N));
+    PARAS
+    #undef PARA
+
+    printf("-----------------------------------\n");
+}
+
+void paras::parse(int argc, char* argv[]) {
+    opt = new paras();
+
+    cmdline::parser parser;
+
+    #define STR_PARA(N, S, M, D, C) \
+    parser.add<std::string>(#N, S, C, M, D);
+    STR_PARAS
+    #undef STR_PARA
+
+    #define PARA(N, T, S, M, D, L, H, C) \
+    if (!strcmp(#T, "int")) parser.add<int>(#N, S, C, M, D, cmdline::range((int)L, (int)H)); \
+    else parser.add<double>(#N, S, C, M, D, cmdline::range((double)L, (double)H));
+    PARAS
+    #undef PARA
+
+    parser.parse_check(argc, argv);
+
+    #define STR_PARA(N, S, M, D, C) \
+    OPT(N) = parser.get<std::string>(#N);
+    STR_PARAS
+    #undef STR_PARA
+
+    #define PARA(N, T, S, M, D, L, H, C) \
+    if (!strcmp(#T, "int")) OPT(N) = parser.get<int>(#N); \
+    else OPT(N) = parser.get<double>(#N);
+    PARAS
+    #undef PARA
+}
\ No newline at end of file
diff --git a/src-light-master/paras.hpp b/src-light-master/paras.hpp
new file mode 100644
index 0000000..718776b
--- /dev/null
+++ b/src-light-master/paras.hpp
@@ -0,0 +1,36 @@
+#ifndef _paras_hpp_INCLUDED
+#define _paras_hpp_INCLUDED
+
+#include <cstring>
+#include <unordered_map>
+
+//        name,       type,  short-name,must-need, default ,low, high, comments
+#define PARAS \
+    PARA( simplify   , int    , 's'  ,  false   , 1     , 0  , 1   , "Use Simplify (only preprocess)") \
+    PARA( port       , int    , 'p'  ,  false   , 2389  , 0  , 1   , "Master Server Listerning Port") \
+
+//            name,   short-name, must-need, default, comments
+#define STR_PARAS \
+    STR_PARA( instance   , 'i'   ,  true    , "" , "CNF format instance") \
+    STR_PARA( solvers    , '\0'  ,  true    , "" , "A Solver List of \"ip:port\" Format, Seperate by ,")
+
+struct paras 
+{
+#define PARA(N, T, S, M, D, L, H, C) \
+    T N = D;
+    PARAS 
+#undef PARA
+
+#define STR_PARA(N, S, M, D, C) \
+    std::string N = D;
+    STR_PARAS
+#undef STR_PARA
+    static void parse(int argc, char* argv[]);
+    void print_paras ();
+};
+
+extern paras* opt;
+
+#define OPT(N) (opt->N)
+
+#endif
\ No newline at end of file
diff --git a/src-light-solver/light.cpp b/src-light-solver/light.cpp
index 41619b9..c4113f5 100644
--- a/src-light-solver/light.cpp
+++ b/src-light-solver/light.cpp
@@ -95,7 +95,7 @@ void light::arg_parse(int argc, char **argv) {
     printf("------------ arguments ------------\n");
 
     #define STR_PARA(N, S, M, D, C) \
-    printf("%-20s: %s\n", #N, OPT(N));
+    printf("%-20s: %s\n", #N, OPT(N).c_str());
     STR_PARAS
     #undef STR_PARA
 
diff --git a/src-light-solver/paras.cpp b/src-light-solver/paras.cpp
index 2b71c0e..51c6c99 100644
--- a/src-light-solver/paras.cpp
+++ b/src-light-solver/paras.cpp
@@ -58,7 +58,5 @@ void paras::print_change() {
     STR_PARAS
 #undef STR_PARA
 
-
-
     printf("c --------------------------------------------------\n");
 }
\ No newline at end of file