public class Test {

static Long count=1l;

static int begin=1;

static int end=7;

public static void main(String[] args) {

xintuzi(begin, end);

System.out.println(count);

}

public static void xintuzi(int begin,int end){

if(begin>end){

return;

}

if(begin%4==0){

xintuzi(1, end-begin);

laotuzi(begin, end);

}else{

begin++;

xintuzi(begin, end);

}

}

public static void laotuzi(int begin,int end){

if(begin>end){

return;

}

count++;

begin++;

xintuzi(1, end-begin);

laotuzi(begin, end);

}

}