#include<bits/stdc++.h> using namespace std; int i=1000,a,b,c,d,s,n; int main(){ cin>>n; while(i<=n){ a=i%10; b=i/10%10; c=i/100%10; d=i/1000; if(a%2==1&&b%2==1&&c%2==1&&d%2==1&&i%2==1){ s+=i; } i++; } cout<<s; return 0; } /************************************************************** Problem: 1744 User: zhangziang Language: C++ Result: Accepted Time:8 ms Memory:2072 kb ****************************************************************/