#include<cstdio>
#include<math.h>
using namespace std;
unsigned long long n,l,c,a[30],b[30],d[30],x[30],s,k;
unsigned long long putere(unsigned long long x,unsigned long long y)
{
	
	while(y)
		return x*putere(x,y-1);
	return 1;
}
int main()
{
	freopen("shop.in","r",stdin);
	freopen("shop.out","w",stdout);
	unsigned long long i,j;
	scanf("%d%d%d",&n,&c,&l);
	for(i=0;i<n;i++)
	{
		scanf("%d%d",&a[i],&b[i]);
		d[i]=i;
	}
	for(i=0;i<n-1;i++)
		for(j=i+1;j<n;j++)
			if(a[i]<a[j])
			{
				unsigned long long aux=a[i];
				a[i]=a[j];
				a[j]=aux;
				aux=b[i];
				b[i]=b[j];
				b[j]=aux;
				aux=d[i];
				d[i]=d[j];
				d[j]=aux;
			}
	i=0;
	while(s<l && i<n)
	{
		unsigned long long p=0,f;
		f=putere(c,a[i]);
		while(s+f<=l && b[i])
		{
			s+=f;
			b[i]--;
			k++;
			p++;
		}
		x[d[i++]]=p;
	}
	if(s==l)
	{
		printf("%d\n",k);
		for(i=0;i<n;i++)
			printf("%d ",x[i]);
	}
	printf("\n");
	return 0;
}