#include <iostream>
using namespace std;

int main() {
    int number;
    
    cout << "Enter a 6-digit number: ";
    cin >> number;
    
    // Check if the number is 6-digit (from 100000 to 999999)
    if (number < 100000 || number > 999999) {
        cout << "Error! Please enter exactly a 6-digit number (from 100000 to 999999)" << endl;
        return 1;
    }
    
    // Extract digits separately
    int digit1 = number / 100000;           // first digit
    int digit2 = (number / 10000) % 10;     // second digit
    int digit3 = (number / 1000) % 10;      // third digit
    int digit4 = (number / 100) % 10;       // fourth digit
    int digit5 = (number / 10) % 10;        // fifth digit
    int digit6 = number % 10;               // sixth digit
    
    // Calculate sums
    int sum_first_three = digit1 + digit2 + digit3;
    int sum_last_three = digit4 + digit5 + digit6;
    
    // Check if lucky
    if (sum_first_three == sum_last_three) {
        cout << "Congratulations! Number " << number << " is lucky!" << endl;
        cout << "Sum of first three digits: " << sum_first_three << endl;
        cout << "Sum of last three digits: " << sum_last_three << endl;
    } else {
        cout << "Number " << number << " is not lucky." << endl;
        cout << "Sum of first three digits: " << sum_first_three << endl;
        cout << "Sum of last three digits: " << sum_last_three << endl;
    }
    
    return 0;
}