#include<bits/stdc++.h> using namespace std; int a,b,c[105],d[105],e[105]; int main(){ cin>>a>>b; c[1]=b%10; for(int i=2;i<=a;i++){ b=(b*6807%201701+2831)%201701; c[i]=b%10; } for(int i=1;i<=a;i++) d[i]=max(d[i-1],c[i]); for(int i=a;i>=1;i--) e[i]=max(e[i+1],c[i]); int ans=0; for(int i=2;i<a;i++){ int t=min(d[i-1],e[i+1]); if(c[i]>=t) continue; ans+=t-c[i]; } cout<<ans; return 0; }