1008 Elevator

#include<iostream>using namespace std;int main(void){    int n;    int temp[100];    temp[0]=0;    int sum;    while(cin>>n)    {        if(n==0)        {            break;        }        sum=0;        for(int i=1;i<=n;i++)        {            cin>>temp[i];            if(temp[i]>temp[i-1])            {                sum+=(temp[i]-temp[i-1])*6+5;            }            else if(temp[i]<temp[i-1])            {                sum+=(temp[i-1]-temp[i])*4+5;            }            else            {                sum+=5;            }        }        cout<<sum<<endl;    }    return 0;}