diff --git a/all_cases/mark.h b/all_cases/mark.h
index 30e1cfd..508bb8c 100644
--- a/all_cases/mark.h
+++ b/all_cases/mark.h
@@ -1,8 +1,43 @@
 #pragma once
 
-#include <stdint.h>
+#include <cstdint>
 
-const uint32_t SHORT_CODE_MARK[16][0x100] = {
+const uint32_t BASIC_RANGES_INDEX[256] = {
+    136384,  49920,  49920, 136384,  49920,  18272,  18272,  49920,
+     49920,  18272,  18272,  49920, 136384,  49920,  49920, 136384,
+     49920,  18272,  18272,  49920,  18272,   6347,   6347,  17589,
+     18272,   6347,   6347,  17589,  49920,  17589,  17589,  48555,
+     49920,  18272,  18272,  49920,  18272,   6347,   6347,  17589,
+     18272,   6347,   6347,  17589,  49920,  17589,  17589,  48555,
+    136384,  49920,  49920, 136384,  49920,  17589,  17589,  48555,
+     49920,  17589,  17589,  48555, 136384,  48555,  48555, 133653,
+     49920,  18272,  18272,  49920,  18272,   6347,   6347,  17589,
+     18272,   6347,   6347,  17589,  49920,  17589,  17589,  48555,
+     18272,   6347,   6347,  17589,   6347,   1785,   1785,   5246,
+      6347,   1785,   1785,   5246,  17589,   5246,   5246,  15163,
+     18272,   6347,   6347,  17589,   6347,   1785,   1785,   5246,
+      6347,   1785,   1785,   5246,  17589,   5246,   5246,  15163,
+     49920,  17589,  17589,  48555,  17589,   5246,   5246,  15163,
+     17589,   5246,   5246,  15163,  48555,  15163,  15163,  43244,
+     49920,  18272,  18272,  49920,  18272,   6347,   6347,  17589,
+     18272,   6347,   6347,  17589,  49920,  17589,  17589,  48555,
+     18272,   6347,   6347,  17589,   6347,   1785,   1785,   5246,
+      6347,   1785,   1785,   5246,  17589,   5246,   5246,  15163,
+     18272,   6347,   6347,  17589,   6347,   1785,   1785,   5246,
+      6347,   1785,   1785,   5246,  17589,   5246,   5246,  15163,
+     49920,  17589,  17589,  48555,  17589,   5246,   5246,  15163,
+     17589,   5246,   5246,  15163,  48555,  15163,  15163,  43244,
+    136384,  49920,  49920, 136384,  49920,  17589,  17589,  48555,
+     49920,  17589,  17589,  48555, 136384,  48555,  48555, 133653,
+     49920,  17589,  17589,  48555,  17589,   5246,   5246,  15163,
+     17589,   5246,   5246,  15163,  48555,  15163,  15163,  43244,
+     49920,  17589,  17589,  48555,  17589,   5246,   5246,  15163,
+     17589,   5246,   5246,  15163,  48555,  15163,  15163,  43244,
+    136384,  48555,  48555, 133653,  48555,  15163,  15163,  43244,
+     48555,  15163,  15163,  43244, 133653,  43244,  43244, 122125,
+};
+
+const uint32_t SHORT_CODE_MARK[16][256] = {
     {
         70039,     0, 25594, 70039, 25594,  9527,  9324, 25594, 22458,     0,  9527, 22458, 70039,     0, 25594, 70039,
             0,     0,     0,     0,     0,     0,     0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
diff --git a/all_cases/short_code.cc b/all_cases/short_code.cc
index 4b3b547..86fcbba 100644
--- a/all_cases/short_code.cc
+++ b/all_cases/short_code.cc
@@ -58,7 +58,7 @@ uint32_t code_from_string(const std::string &short_code) {
 int main() {
 
     auto a = AllCases();
-    a.find_all_cases();
+//    a.find_all_cases();
 
 //    std::vector<uint64_t> all_cases;
 //    for (int n = 0; n < 16; ++n) {
@@ -129,27 +129,43 @@ int main() {
 //    printf("%08X\n", a.all_cases[6][1]);
 //    printf("%08X\n", a.all_cases[6][2]);
 
-    uint32_t index[256];
-    for (auto &all_case : a.all_cases) {
-        printf("    {\n");
-        for (uint32_t &tmp: index) {
-            tmp = 0;
-        }
-        for (auto &range: all_case) {
-            ++index[range >> 24];
+//    uint32_t index[256];
+//    for (auto &all_case : a.all_cases) {
+//        printf("    {\n");
+//        for (uint32_t &tmp: index) {
+//            tmp = 0;
+//        }
+//        for (auto &range: all_case) {
+//            ++index[range >> 24];
+//        }
+//        for (int i = 0; i < 256; ++i) {
+//            if (i % 16 == 0) {
+//                printf("        ");
+//            }
+//            printf("%5d, ", index[i]);
+//            if (i % 16 == 15) {
+//                printf("\n");
+//            }
+//        }
+//        printf("    },\n");
+//    }
+
+    uint32_t index[256] = {0};
+    for (auto range : a.basic_ranges) {
+        range = AllCases::binary_reverse(range);
+        ++index[range >> 24];
+    }
+    for (int i = 0; i < 256; ++i) {
+        if (i % 8 == 0) {
+            printf("    ");
         }
-        for (int i = 0; i < 256; ++i) {
-            if (i % 16 == 0) {
-                printf("        ");
-            }
-            printf("%5d, ", index[i]);
-            if (i % 16 == 15) {
-                printf("\n");
-            }
+        printf("%6d, ", index[i]);
+        if (i % 8 == 7) {
+            printf("\n");
         }
-        printf("    },\n");
     }
 
+
 //    std::cout << code_to_string(14323231) << std::endl;
 //    std::cout << code_from_string("8IzVj") << std::endl;