diff --git a/lab07/01.cpp b/lab07/01.cpp
new file mode 100644
index 0000000..d4656ff
--- /dev/null
+++ b/lab07/01.cpp
@@ -0,0 +1,22 @@
+#include <iostream>
+using namespace std;
+
+int fib(int n){
+	if(n <= 1){
+		return n;
+	}
+	return fib(n-1) + fib(n-2);
+}
+
+int main(){
+	int n;
+	cout<<"N = ";
+	cin>>n;
+
+	for(int i=0; i<n; i++){
+		cout<<fib(i)<<", ";
+	}
+	cout<<"\b\b  "<<endl;
+
+	return 0;
+}
diff --git a/lab07/02.cpp b/lab07/02.cpp
new file mode 100644
index 0000000..95b22b7
--- /dev/null
+++ b/lab07/02.cpp
@@ -0,0 +1,22 @@
+#include <iostream>
+using namespace std;
+
+int convert(int number, int base){
+	if(number == 0 || base == 10){
+		return number;
+	}
+
+	return (number%base) + 10 * convert(number / base, base);
+}
+
+int main(){
+	int n, base;
+	cout<<"Number: ";
+	cin>>n;
+	cout<<"Target base: ";
+	cin>>base;
+
+	cout<<"Result: "<<convert(n, base)<<endl;
+
+	return 0;
+}
diff --git a/lab07/03.cpp b/lab07/03.cpp
new file mode 100644
index 0000000..97fdd91
--- /dev/null
+++ b/lab07/03.cpp
@@ -0,0 +1,25 @@
+#include <iostream>
+#include <string>
+using namespace std;
+
+bool isPalindrome(string str){
+	if(!str.size()){
+		return true;
+	}
+
+	if(str.front() != str.back()){
+		return false;
+	}
+
+	return isPalindrome(str.substr(1, str.size() - 2));
+}
+
+int main(){
+	string str;
+	cout<<"Enter a word: ";
+	cin>>str;
+
+	cout<<"The word is "<<(isPalindrome(str) ? "" : "not ")<<"palindrome."<<endl;
+
+	return 0;
+}