C :

#include<stdio.h>
int n,m,sum;
int work(int n,int m)
{
    return n==0 ?(sum=m+1):(sum=work(n-1,m)*2);
}
int main()
{
	scanf("%d%d",&n,&m);
	work(n,m);
	printf("%d",sum);
	return 0;
}

C++ :

#include<iostream>
#include<cstdio>
using namespace std;
int n,m;
int move(int,int);
int main()
{
	cin>>n>>m;
	cout<<move(n,m)<<endl;
	return 0;
}
int move(int s,int y)
{
	if(s==0) return y+1;
	return 2*move(s-1,y);
}

Pascal :

var
  n,m:int64;
begin
  readln(n,m);
  writeln((m+1) shl n);
end.