diff --git a/польский калькулятор.txt b/польский калькулятор.txt
new file mode 100644
index 0000000..2ae907f
--- /dev/null
+++ b/польский калькулятор.txt	
@@ -0,0 +1,41 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int main()
+{
+    string str;
+    getline(cin, str);
+    vector <char> sym;
+    vector <int> ans;
+    int a;
+    for (int i = 0; i < str.size(); i++){
+        if (str[i] != ' ') {
+            sym.push_back(str[i]);
+        }
+    }
+    for (int i = 0; i < sym.size(); i++) {
+        if ('0' <= sym[i] && sym[i] <= '9') {
+            ans.push_back(sym[i] - '0');
+        }
+        if (sym[i] == '+') {
+            a = ans[ans.size() - 1];
+            ans.pop_back();
+            ans[ans.size() - 1] += a;
+        }
+        if (sym[i] == '-') {
+            a = ans[ans.size() - 1];
+            ans.pop_back();
+            ans[ans.size() - 1] -= a;
+        }
+        if (sym[i] == '*') {
+            a = ans[ans.size() - 1];
+            ans.pop_back();
+            ans[ans.size() - 1] *= a;
+        }
+    }
+    for (int i = 0; i < ans.size(); i++)
+    cout << ans[i] << ' ';
+    
+    return 0;
+}
\ No newline at end of file
diff --git a/удаление пробелов.txt b/удаление пробелов.txt
new file mode 100644
index 0000000..9782656
--- /dev/null
+++ b/удаление пробелов.txt	
@@ -0,0 +1,26 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int main()
+{
+    string str;
+    getline(cin, str);
+    int flag = 0;
+    for (int i = 0; i < str.size(); i++){
+        if (str[i] != ' ') {
+            cout << str[i];
+            flag = 1;
+        }
+        if (str[i] == ' ' && flag == 0) {
+            continue;
+        }
+        if (str[i] == ' ' && i+1 < str.size() && flag == 1) {
+            if (str[i+1] != ' ') {
+                cout << str[i];
+            }
+        }
+    }
+        
+    return 0;
+}
\ No newline at end of file