diff --git a/.c4droid b/.c4droid
new file mode 100644
index 0000000..937ec99
--- /dev/null
+++ b/.c4droid
@@ -0,0 +1,13 @@
+#Sat Jan 06 23:52:39 GMT+08:00 2024
+binary_fname=
+run_mode=0
+use_cmake=false
+sm_names=testline.c src/list/src/list.c src/list/src/list_iterator.c src/list/src/list_node.c 
+qmake_cmd=export PATH\=(c4droid\:GCCROOT)qt/bin/\:$PATH\nqmake -spec android-g++
+cmake_cmd=cmake .
+prepare_cmds=export PATH\=/busybox-virtual\:(c4droid\:DATADIR)\:(c4droid\:GCCROOT)bin\:(c4droid\:GCCROOT)(c4droid\:PREFIX)/bin/\:$PATH\nexport CC\="(c4droid\:PREFIX)-gcc (c4droid\:PIE) (c4droid\:MAKEMODEARGS)"\nexport CXX\="(c4droid\:PREFIX)-g++ (c4droid\:PIE) (c4droid\:MAKEMODEARGS)"\nexport SHELL\="(c4droid\:DATADIR)sh"\ncd (c4droid\:CURSRCDIR)
+comp_mode=4
+make_cmd=make CC\="$CC" CXX\="$CXX" SHELL\="$SHELL"
+conf_patch=true
+conf_cmd=export PATH\=/busybox-virtual\:(c4droid\:DATADIR)\:(c4droid\:GCCROOT)bin\:(c4droid\:GCCROOT)(c4droid\:PREFIX)/bin/\:$PATH\nexport CFLAGS\="-Os -s (c4droid\:PIE)"\nexport CXXFLAGS\="-Os -s (c4droid\:PIE)"\nexport SHELL\="(c4droid\:DATADIR)sh"\nexport CONFIG_SHELL\="sh"\nexport PKG_CONFIG_PATH\=(c4droid\:GCCROOT)(c4droid\:PREFIX)/lib/pkgconfig\ncd (c4droid\:CURSRCDIR)\nfind . -exec touch {} \\;\ncd (c4droid\:BUILDDIR)\n(c4droid\:CURSRCDIR)/configure --host\=(c4droid\:PREFIX) --prefix\=(c4droid\:GCCROOT)(c4droid\:PREFIX) CFLAGS\="$CFLAGS" CXXFLAGS\="$CXXFLAGS" --build\=i686-linux --disable-shared --enable-static\nmake SHELL\="$SHELL"\nmake install SHELL\="$SHELL"
+conf_internal=false
diff --git a/testline.c b/testline.c
index fed75c0..7c76cbf 100644
--- a/testline.c
+++ b/testline.c
@@ -2,62 +2,50 @@
 #include <string.h>
 #include "src/list/src/list.h"
 
-/*
+
 typedef struct InfoState {
   char* info;
-  int len;
-  int fullLines;
-  int Nlines;
-  int lastlinelen;
-  char *pos1, *pos2, *pos3;
-  list_t* wrap;
+  list_node_t *pos1, *pos2, *pos3;
+  list_t *wrap;
+  list_iterator_t *it;
+  //list_node_t *node;
 } InfoState;
 
-void initInfoState(InfoState* st, char* text) {
-  st->info = text;
-  st->len = strlen(text);
-  st->fullLines = st->len / 15;
-  st->Nlines = (st->len + 14) / 15;
-  st->lastlinelen = st->len % 15;
-  st->pos1 = text;
-  st->pos2 = text;
-  st->pos3 = text;
-  st->wrap = list_new();
-  char* tmp = text;
-  //list_node_t *c = list_rpush(st->wrap, list_node_new("c"));
-}
+
 
 void lcd_blank_line() {
   for (int i = 0; i < 15; ++i) {
-    lcd.print(' ');
+    //lcd.print(' ');
+    printf(" ");
   }
 }
 
-void initInfoScreen(InfoState* st, char* text) {
-  initInfoState(st, text);
-  lcd.setCursor(0, 0);
-  if (*(st->pos1) == '\n' || *(st->pos1) == '\r') {
-    lcd_blank_line();
-    ++st->pos1;
-    ++st->pos2;
-  } else {
-    st->pos2 += lcd_print_line(st->pos1);
+int lcd_print_between(char* pos1, char* pos2) {
+  //int i = 0;
+  int va = 0;
+  
+  char* p = pos1;
+  //int slen = strlen(str);
+  while (p < pos2) {
+    if (*p != '\n' && *p != '\r') {
+      //lcd.print(*(p++));
+      putchar(*(p++));
+      ++va;
+    } //else 
+    //if (i == 0){ ++i; } else 
+    //{
+    //  break;
+    //}
   }
-  lcd.setCursor(0, 1);
-  if ((*(st->pos2) == '\n' || *(st->pos2) == '\r') && *(st->pos2 - 1) == *(st->pos2)) {
-    lcd_blank_line();
-  } else {
-    lcd_print_line(st->pos2);
+  
+  if (va < 15) {
+    for (int j = 15 - va; j > 0; --j) {
+      //lcd.print(' ');
+      putchar(' ');
+    }
   }
-#ifdef DEBUG
-  //Serial.println(String("pos1: ") + st->pos1);
-  //Serial.println(String("pos2: ") + st->pos2);
-  Serial.println("init");
-  Serial.print(st->pos1-st->info);
-  Serial.println(String(" ")+(st->pos2-st->info));
-#endif
+  return va;
 }
-*/
 
 list_t* aux_gen_wrap_list(list_t* wrap, char* text) {
   if (wrap == NULL) {
@@ -66,7 +54,7 @@ list_t* aux_gen_wrap_list(list_t* wrap, char* text) {
   char* curr = text;
   int suf = 0;
   list_node_t *node;
-  if (list_rpush(wrap, list_node_new(0)) == NULL) {
+  if (list_rpush(wrap, list_node_new(-1)) == NULL) {
     return NULL;
   }
   while (*curr != '\0') {
@@ -91,6 +79,36 @@ list_t* aux_gen_wrap_list(list_t* wrap, char* text) {
   return wrap;
 }
 
+void initInfoState(InfoState* st, char* text) {
+  st->info = text;
+  //st->len = strlen(text);
+  //st->fullLines = st->len / 15;
+  //st->Nlines = (st->len + 14) / 15;
+  //st->lastlinelen = st->len % 15;
+  //st->pos1 = text;
+  //st->pos2 = text;
+  //st->pos3 = text;
+  st->wrap = list_new();
+  st->wrap = aux_gen_wrap_list(st->wrap, st->info);
+  st->it = list_iterator_new(st->wrap, LIST_HEAD);
+  st->pos1 = list_iterator_next(st->it);
+  st->pos2 = st->pos3 = NULL;
+}
+
+void initInfoScreen(InfoState* st, char* text) {
+  initInfoState(st, text);
+  //lcd.setCursor(0, 0);
+  if ((st->pos2 = list_iterator_next(st->it))) {
+    //printf("hello\n");
+    printf("%d\n", st->pos2->val);
+    int tmp = lcd_print_between(st->info, st->info+(int)st->pos2->val);
+    printf("%d\n", tmp);
+  }
+  
+}
+
+
+
 /*
   Separate a substring that can be printed on one line, and return the 
   original string position corresponding to the end of the substring.
@@ -158,20 +176,28 @@ char* aux_sub_line_rev(char* str, char substr[16]) {
 
 int main() {
   char* cinfo = "Far far away, a\n\nbehind the word mountains, far from the countries Vokalia and Consonantia, there live the blind texts.";
-  
+  //             0              1516               32
   list_t *wrap = list_new();
   wrap = aux_gen_wrap_list(wrap, cinfo);
   
   list_node_t *node;
   list_iterator_t *it = list_iterator_new(wrap, LIST_HEAD);
   
+  InfoState st;
+  initInfoScreen(&st, cinfo);
   
+ /* 
   while ((node = list_iterator_next(it))) {
     printf("%d\n", (unsigned int)(node->val));
   }
-  
+  */
   /*
   if ((node = list_iterator_next(it))) {
+    
+  }
+    
+  if ((node = list_iterator_next(it))) {
+    //if (node->val == -1) {
     char* p = cinfo;
     list_node_t *test;
     while (*p != '\0') {