diff --git a/a.txt b/a.txt
new file mode 100644
index 000000000..5f79ef3d7
--- /dev/null
+++ b/a.txt
@@ -0,0 +1,2 @@
+hey there!!
+how are you??
diff --git a/sectionA.txt b/sectionA.txt
new file mode 100644
index 000000000..c2781fd7c
--- /dev/null
+++ b/sectionA.txt
@@ -0,0 +1 @@
+Section A
diff --git a/smart.c b/smart.c
new file mode 100644
index 000000000..f37e7df07
--- /dev/null
+++ b/smart.c
@@ -0,0 +1,189 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+// Define a structure for a transaction
+typedef struct Transaction {
+    char type[10];  // Transaction type (Deposit/Withdraw)
+    double amount;  // Transaction amount
+} Transaction;
+
+// Stack structure
+#define MAX 5  // Maximum size of the stack
+Transaction stack[MAX];
+int top = -1;
+
+// Function to check if the stack is full
+int isFull() {
+    return top == MAX - 1;
+}
+
+// Function to check if the stack is empty
+int isEmpty() {
+    return top == -1;
+}
+
+// Function to push a transaction onto the stack
+void push(char *type, double amount) {
+    if (isFull()) {
+        printf("Stack Overflow: Cannot add more transactions.\n");
+        return;
+    }
+
+    top++;
+    strcpy(stack[top].type, type);
+    stack[top].amount = amount;
+    printf("Transaction %s of $%.2f added.\n", type, amount);
+}
+
+// Function to pop a transaction from the stack (undo)
+void pop() {
+    if (isEmpty()) {
+        printf("No transactions to undo.\n");
+        return;
+    }
+
+    printf("Undoing %s of $%.2f\n", stack[top].type, stack[top].amount);
+    top--;
+}
+
+// Function to view the last transaction (peek)
+void peek() {
+    if (isEmpty()) {
+        printf("No transactions available.\n");
+        return;
+    }
+
+    printf("Last Transaction: %s of $%.2f\n", stack[top].type, stack[top].amount);
+}
+
+// Function to display all transactions
+void displayTransactions() {
+    if (isEmpty()) {
+        printf("No transactions to display.\n");
+        return;
+    }
+
+    printf("Transactions:\n");
+    for (int i = 0; i <= top; i++) {
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+// Define a structure for a transaction
+typedef struct Transaction {
+    char type[10];  // Transaction type (Deposit/Withdraw)
+    double amount;  // Transaction amount
+} Transaction;
+
+// Stack structure
+#define MAX 5  // Maximum size of the stack
+Transaction stack[MAX];
+int top = -1;
+
+// Function to check if the stack is full
+int isFull() {
+    return top == MAX - 1;
+}
+
+// Function to check if the stack is empty
+int isEmpty() {
+    return top == -1;
+}
+
+// Function to push a transaction onto the stack
+void push(char *type, double amount) {
+    if (isFull()) {
+        printf("Stack Overflow: Cannot add more transactions.\n");
+        return;
+    }
+
+    top++;
+    strcpy(stack[top].type, type);
+    stack[top].amount = amount;
+    printf("Transaction %s of $%.2f added.\n", type, amount);
+}
+
+// Function to pop a transaction from the stack (undo)
+void pop() {
+    if (isEmpty()) {
+        printf("No transactions to undo.\n");
+        return;
+    }
+
+    printf("Undoing %s of $%.2f\n", stack[top].type, stack[top].amount);
+    top--;
+}
+
+// Function to view the last transaction (peek)
+void peek() {
+    if (isEmpty()) {
+        printf("No transactions available.\n");
+        return;
+    }
+
+    printf("Last Transaction: %s of $%.2f\n", stack[top].type, stack[top].amount);
+}
+
+// Function to display all transactions
+void displayTransactions() {
+    if (isEmpty()) {
+        printf("No transactions to display.\n");
+        return;
+    }
+
+    printf("Transactions:\n");
+    for (int i = 0; i <= top; i++) {
+        printf("%d. %s of $%.2f\n", i + 1, stack[i].type, stack[i].amount);
+    }
+}
+
+int main() {
+    int choice;
+    double amount;
+    char type[10];
+
+    while (1) {
+        printf("\nSmart Banking System\n");
+        printf("1. Deposit\n");
+        printf("2. Withdraw\n");
+        printf("3. Undo Last Transaction\n");
+        printf("4. View Last Transaction\n");
+        printf("5. View All Transactions\n");
+        printf("6. Exit\n");
+        printf("Enter your choice: ");
+        scanf("%d", &choice);
+
+        switch (choice) {
+            case 1:
+                printf("Enter deposit amount: ");
+                scanf("%lf", &amount);
+                strcpy(type, "Deposit");
+                push(type, amount);
+                break;
+            case 2:
+                printf("Enter withdrawal amount: ");
+                scanf("%lf", &amount);
+                strcpy(type, "Withdraw");
+                push(type, amount);
+                break;
+            case 3:
+                pop();
+                break;
+            case 4:
+                peek();
+                break;
+            case 5:
+                displayTransactions();
+                break;
+            case 6:
+                printf("Exiting...\n");
+                exit(0);
+                break;
+            default:
+                printf("Invalid choice! Please try again.\n");
+        }
+    }
+
+    return 0;
+}