#include<bits/stdc++.h>
using namespace std;
long long a[50];
long long b[50]={0,0,1,2,1,4,5,4,1,2,9,0,5,10,11,14,9,0,11,18,9,11,11,15,17,9,23,20,25,16,29,27,25,11,17,4,29,22,37,23,9,1,11,11,33,29,15,5,41,46}; 
int main() {	
	for(int i=1;i<=49;i++)
	a[i]=i;
	long long sum=1;
	 long long step=1;
	 long long x=1;
	for(int i=2;i<=49;i++)
	{
	
		while(x%i!=b[i])
		  {
		  	x=x+step;
		   } 
	   step=(a[i]*step/__gcd(a[i],step));	
	}
 cout<<x;

	}