Why can't I enter both number and sentence?

[stonedviper]

Hello!
I searched for an answer for this everywhere but I couldn't find any.
so my question is why my does my program take only one string sentence but takes all of my int values?

Thank you for your time and answers!

#include <iostream>
#include <string>
#include <sstream>

using namespace std;


int main ()
{
    string a[3];
    int i,j[3];

    for(i=0;i<3;i++)
    {
        cout<<"enter sentence \n";
        getline(cin,a[i]);
        cout<<"enter number \n";
        cin>>j[i];
    }

        for(i=0;i<3;i++)
    {
        cout<<"\n"<<a[i]<<"\n"<<j[i];
    }
}

[Enoizat]

#include <iostream>
#include <string>

int main ()
{
    std::string a[3];
    int j[3];

    for(int i=0; i<3; i++)
    {
        std::cout << "Enter sentence: ";
        getline(std::cin, a[i]);
        std::cout << "enter number: ";
        std::cin >> j[i];
        std::cin.ignore(1); // get rid of following '\n'
        std::cout << '\n';
    }

    for(int i=0; i<3; i++)
    {
        std::cout <<   "a["  << i << "]: " << a[i] 
                  << "; j[" << i << "]: " << j[i] << '\n';
    }
}

[stonedviper]

I see thank you!