#include<bits/stdc++.h> using namespace std; int main(){ double sum; int cnt; cin>>sum;//建议是0 cin>>cnt;//建议是0 while(1){ sum = sum+2.5; cnt = cnt+1; cnt = cnt-1; cnt++; if(cnt%5==0){ sum = sum-6; } if(sum>=100){ break; } }cout<<cnt; return 0; }