123456789101112131415161718192021222324252627282930
#include <iostream> using namespace std; int main() { int n,c=0; cin>>n; int r=n%10; if(r>8) { while(r!=8) { c--; } } else if(r<8) { while(r!=8) { c++; } } cout<<c<<endl; return 0; }