# include <bits/stdc++.h> using namespace std ; long long n [1919810] ; int main ( ) { int a , b ; while ( cin >> a >> b ) { memset ( n , 0 , sizeof ( n ) ) ; n [1] = a ; int c2 = 1 , c3 = 1 , cur = 1 ; for ( int i = 1 ; i <= b ; i ++ ) { if ( n [c2] * 2 + 1 < n [c3] * 3 + 1 ) { if ( n [c2] * 2 + 1 != n [cur] ) { cur ++ ; n [cur] = n [c2] * 2 + 1 ; } else { i -- ; } c2 ++ ; } else { if ( n [c3] * 3 + 1 != n [cur] ) { cur ++ ; n [cur] = n [c3] * 3 + 1 ; } else { i -- ; } c3 ++ ; } } cout << n [b] << endl ; } return 0 ; }