手机话费

#include<iostream>using namespace std;int main(){int m,k;while(cin>>m>>k){    if(m==0&&k==0)    break;    int count=0;    int day=0;    while(m)    {        m--;        count++;        day++;        if(count==k)        {            count=0;            m+=1;        }    }    cout<<day<<endl;}return 0;}