#include<bits/stdc++.h>
using namespace std;
string s;
int a[210]={0};
int m;
int num;
long long  dp(int q,int nnt,int num)
{
long long  cnt=0;
long long cntt=1;
for(int i=q+nnt-1;i>=q;--i)
{
cnt=a[i]*cntt+cnt;
cntt=cntt*10;
}
for(int i=1;i<=m;++i)
{
long long cheng=1;
for(int j=q+nnt+num*i-1;j>q+nnt+num*(i-1)-1;--j)
{
cnt=a[j]*cheng+cnt;
cheng=cheng*10;
}
}
for(int i=1;i<=m;++i)
{
if(q>1)
{
long long cheng=1;
for(int j=q-(i-1)*num-1;j>=q-num*i;--j)
{
cnt=a[j]*cheng+cnt;
cheng=cheng*10;
}
}
}
return cnt;
}
int main(void)
{
freopen("exam4.in","r",stdin);
freopen("exam4.out","w",stdout);
cin>>s>>m;
for(int i=1;i<=s.length();++i)
{
a[i]=s[i-1]-'0';
}
num=s.length()/m;
int nnt=s.length()-num*m;
long long answer=dp(1,nnt,num);
for(int i=1;i<=s.length()-nnt;i=i+num)
{

answer=min(answer,dp(i,nnt,num));

}
answer=min(answer,dp(s.length()-nnt+1,nnt,num));
cout<<answer;
return 0;
}