#include <iostream> using namespace std; int main() { long long int n,k; cin>>n>>k; cout<<(n*k+k)%1000000007; return 0; }
1 2 3 4 5 6 7 8 9 10 11 | #include <iostream> using namespace std; int main() { long long int n,k; cin>>n>>k; cout<<(n*k+k)%1000000007; return 0; } |