//{{{ #include using namespace std; #define rep(...) repN((__VA_ARGS__,rep3,rep2,loop,~))(__VA_ARGS__) #define loop(n) rep2(_loop_,n) #define rep2(i,n) rep3(i,0,n) #define rep3(i,begin,end) for(int i=(int)(begin),i##_end=(int)(end);i> N; int temp = 0; if(N % 3 == 0) temp += 4; if(N % 5 == 0) temp += 4; if(temp == 0) temp += to_string(N).size(); ans += temp; } printf("%d\n", ans); return 0; }