别怪我没告诉你，上面是错的

#include<bits/stdc++.h>
using namespace std;
int main()
{
int n,m,j1,j2,nt,nt1;
cin>>n>>m;
n=nt;
n=nt1;
while(j1!=0)
{
nt=nt-1;
j1=nt%m;
}
while(j2!=0)
{
nt1=nt1+1;
j2=nt1%m;
}
if(nt>nt1)
cout<<nt1;
else
cout<<nt;
return 0;
}