How do you initialize array with elements of smaller array?

Ex:

int main(){

const int MAX_SIZE = 28;

const int LOW_SIZE = 7;

int big_array[MAX_SIZE];

int small_array[LOW_SIZE] = {1, 2, 3, 4, 5, 6, 7};

for(int i = 0; i < MAX_SIZE; i++){

big_array[i] = small_array[i];

}

for(int j = 0; j < MAX_SIZE; j++){

cout << big_array[j] << " ";

}

}

}

My Output: 1 2 3 4 5 6 7 29720 1 2 3 4 5 6 7 29720 1 2 3 4 5 6 7 29720 1 2 3 4

Desired Output: 1 2 3 4 5 6 7 1 2 3 4 5 6 7 1 2 3 4 5 6 7 1 2 3 4 5 6 7