#include<iostream>
using namespace std;
int main()
{
    int creditScore,income;
    cin>>creditScore;
    cin>>income;
    try{
        if(creditScore<0||income<0)
        throw-1;
        if(creditScore<0|income<700)
        throw 1;
        try{
            if(income<30000)]
            throw 2;
            cout<<"Loan approved";
        }
        catch(int e){
            if(e == 2)
            cout<<"Insufficient income";
        }
    }
    catch (int e){
        if(e == -1)
        cout<<"Invalid input";
        else if(e==1)
        cout<<"Low credit score";
    }
    return 0;
}