diff --git a/15Ex/main.c b/15Ex/main.c
index a3e38d1..bda01b6 100644
--- a/15Ex/main.c
+++ b/15Ex/main.c
@@ -5,6 +5,7 @@
 int main(void) {
     double * numbers;
     FILE * file = getFile();
+    if (file == NULL) return -1;
 
     numbers = getList(file);
     if (numbers == NULL) return 1;
diff --git a/22Ex/input.txt b/22Ex/input.txt
new file mode 100644
index 0000000..e69de29
diff --git a/22Ex/main.c b/22Ex/main.c
new file mode 100644
index 0000000..d467ff4
--- /dev/null
+++ b/22Ex/main.c
@@ -0,0 +1,30 @@
+#include <stdio.h>
+#include "tools.h"
+
+int transposition(double * numbers);
+
+int transposition(double * numbers) {
+    unsigned length = (int)numbers[0];
+
+
+    int last_index = -1;
+    unsigned last_length = 0;
+
+    return 0
+}
+
+int main(void) {
+    double * numbers;
+    FILE * file = getFile();
+    if (file == NULL) return -1;
+
+    numbers = getList(file);
+    if (numbers == NULL) return -1;
+
+    if (transposition(numbers) != 0) return -1;
+
+    for (int i = 1; i < numbers[0]; ++i) printf("%d ", numbers[i]);
+
+    free(numbers);
+    return 0;
+}
diff --git a/22Ex/tools.c b/22Ex/tools.c
new file mode 100644
index 0000000..f2ebc66
--- /dev/null
+++ b/22Ex/tools.c
@@ -0,0 +1,50 @@
+#include "tools.h"
+
+FILE * getFile(void)
+{
+    FILE * file;
+    char filename[50];
+
+    printf("Enter filename: ");
+    if (scanf("%s", filename) == 1)
+    {
+        file = fopen(filename, "r");
+        if (file == NULL) {
+            printf("Error file!\n");
+            return NULL;
+        } else {
+            return file;
+        }
+    } else
+    {
+        printf("Empty name!\n");
+        return NULL;
+    }
+}
+
+double * getList(FILE * file) {
+    double current;
+    int i, length = 2;
+    double * numbers = NULL;
+
+    if (fscanf(file, "%lf", &current) != 1) {
+        printf("File is empty!");
+        return numbers;
+    }
+
+    numbers = (double *)malloc(length * sizeof(double));
+    i = 1;
+
+    do {
+        if (i >= length) {
+            length *= 2;
+            numbers = (double *)realloc(numbers, (length * sizeof(double)));
+        }
+        numbers[i] = current;
+        i++;
+    } while (fscanf(file, "%lf", &current) == 1);
+
+    numbers = (double *)realloc(numbers, i * sizeof(double));
+    numbers[0] = i;
+    return numbers;
+}
diff --git a/22Ex/tools.h b/22Ex/tools.h
new file mode 100644
index 0000000..706e31a
--- /dev/null
+++ b/22Ex/tools.h
@@ -0,0 +1,10 @@
+#ifndef TOOLS
+#define TOOLS
+
+#include <stdio.h>
+#include <stdlib.h>
+
+FILE * getFile(void);
+double * getList(FILE * file);
+
+#endif