diff --git a/sem1/test1/test1.cpp b/sem1/test1/test1.cpp
new file mode 100644
index 0000000..aebf876
--- /dev/null
+++ b/sem1/test1/test1.cpp
@@ -0,0 +1,112 @@
+#include <iostream>
+using namespace std;
+
+int countSpases(char *str, int length);
+void insertSpase(char *rStr, int rLength, int number);
+void displayRStr(char *rStr, int rLength);
+
+int main()
+{
+    cout << "Enter length of string" << endl;
+    int length = 0;
+    cin >> length;
+
+    cout << "Enter string" << endl;
+    char *str = new char[length] {};
+    for (int i = 0; i <= length; i++)
+    {
+        char symbol = '\0';
+        scanf("%c", &symbol);
+        if (i > 0)
+        {
+            str[i - 1] = symbol;
+        }
+    }
+
+    cout << "Enter length of required string" << endl;
+    int rLength = 0;
+    cin >> rLength;
+
+    char *rStr = new char[rLength] {};
+    for (int i = 0; i < length; i++)
+    {
+        rStr[i] = str[i];
+    }
+
+    int spases = countSpases(str, length);
+    int reserveSpases = rLength - length;
+    int barrier = length;
+
+    while ((reserveSpases >= spases) && (spases != 0))
+    {
+        for (int i = 0; i < barrier; i++)
+        {
+            if (rStr[i] == ' ')
+            {
+                insertSpase(rStr, rLength, i);
+                reserveSpases--;
+                barrier++;
+                int spasesBetwWords = 0;
+                for (int j = i; rStr[j] == ' '; j++)
+                {
+                    spasesBetwWords++;
+                }
+                i += spasesBetwWords;
+            }
+        }
+    }
+
+    int counter = 1;
+    for (int i = 0; (i < rLength) && (reserveSpases > 0); i++)
+    {
+        if ((rStr[i] == ' ') && (counter > 0))
+        {
+            insertSpase(rStr, rLength, i);
+            reserveSpases--;
+            counter *= -1;
+        }
+    }
+
+    displayRStr(rStr, rLength);
+
+    delete[] str;
+    delete[] rStr;
+}
+
+int countSpases(char *str, int length)
+{
+    int result = 0;
+    for (int i = 0; i < length; i++)
+    {
+        if (str[i] == ' ')
+        {
+            result++;
+        }
+    }
+    return result;
+}
+
+void insertSpase(char *rStr, int rLength, int number)
+{
+    int spasesBetwWords = 0;
+    for (int i = number; rStr[i] == ' '; i++)
+    {
+        spasesBetwWords++;
+    }
+    int current = rStr[number + spasesBetwWords];
+    rStr[number + spasesBetwWords] = rStr[number];
+    for (int i = rLength - 1; i >= number + spasesBetwWords; i--)
+    {
+        rStr[i] = rStr[i - 1];
+    }
+    rStr[number + spasesBetwWords + 1] = current;
+}
+
+void displayRStr(char *rStr, int rLength)
+{
+    for (int i = 0; i < rLength; i++)
+    {
+        cout << rStr[i];
+    }
+}
+