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Cod sursa(job #760026)
#include<iostream>
#include<fstream>
#include<cstring>
#define DIM 1000004
using namespace std;
long long d,r,af;
char s[DIM];
long long rest();
void adunare(long long val);
int main()
{
ifstream fin("next.in");
ofstream fout("next.out");
fin.getline(s,DIM);
fin>>d;
r=rest();
adunare(d-r);
if(af>0)
fout<<af;
int i;
for(i=0;s[i];i++)
fout<<s[i];
return 0;
}
long long rest()
{
int i;
long long a=s[0]-'0';
for(i=1;s[i] && a<d;i++)
a=a*10+s[i]-'0';
for(;s[i];i++)
{
a=a%d;
a=a*10+s[i]-'0';
}
return a%d;
}
void adunare(long long val)
{
int i;
int n=strlen(s);
for(i=n-1;i>=0;i--)
{
val+=s[i]-'0';
s[i]=char(val%10+'0');
val=val/10;
}
af=val;
}