#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ int a,b,c,d,e,f,g,h,n; cin>>a; d=a%1230; c=a%1200-d; b=a%1000-c-d; a=a-b-c-d; e=a/10; f=b*10; g=c/10; h=d*10; cout<<e+f+g+h; return 0; }