#include <iostream>
using namespace std;
 
int work[15][2] = {{1,1},{1,2},{1,3},{1,4},{1,5}};
int day=5;
int maxt;
 
void cal(int i){
  int t=i;
  int price=0;
 
  for(int a=i; a<day; a+=(work[a][0] == 1) ? 1 : work[a][0]-1){
     cout << t << ' ' << a << ' ' << price << endl;
    if(t +(work[a][0] == 1) ? 1 : work[a][0]-1 < day) {
      t += (work[a][0] == 1) ? 1 : work[a][0]-1;
      price += work[a][1];
    }
  }
 
  if(t == day-1){
    if(maxt < price) maxt = price;
  }
}
 
int main(){
for(int i=0; i<day; i++){
 cal(i);
}
 
cout << maxt;
 
return 0;
}

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