# include<iostream> # include<queue> using namespace std; int main(){ queue <int> q; int n,m; cin>>n>>m; for(int i=1;i<=n;i++){ q.push(i); } for(int i=1;i<=n;i++){ for(int j=1;j<m;j++){ q.push(q.front()); q.pop(); }if(i==n) cout<<q.front(); q.pop(); } return 0; }