// Patratul unui nr special.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <stdio.h>
#include <malloc.h>
#include <string.h>
int main(int argc, char* argv[])
{
	int i=0;
	FILE *pf=fopen("e:\\iulia\\numar.txt","r");
	char *vectorChar;
	int vectorInt[500],dim;
	vectorChar=(char*)malloc(sizeof(char));
	fgets(vectorChar,sizeof(char)*500,pf);//citeste sirul de caractere
	//printf("%d \n",strlen(vector));//cate elemente are sirul de numere
	dim=strlen(vectorChar);
	//convertire caractere in cifre
	for(i=0;i<dim;i++) 
	{
		vectorInt[i]=(int)vectorChar[i]-48;
		printf("v[%d]=%d\n",i+1,vectorInt[i]);
	}
	int matrice[250][500],j;
	for(i=0;i<dim;i++)
		for(j=0;j<(2*dim-1);j++)
			matrice[i][j]=0;
	for(i=0;i<dim;i++)
		for(j=dim-i-1;j<(2*dim-1)-i;j++)
			matrice[i][j]+=vectorInt[j-dim+i+1]*vectorInt[dim-i-1];
	/*for(i=0;i<dim;i++) for(j=0;j<(2*dim-1);j++)//verificare
		printf("A(%d,%d)=%d\n",i,j,matrice[i][j]);*/
	//rezultatul este pus intr-un vector
	int rez[500],temp=0;
	for(j=(2*dim-2);j>-1;j--)
	{
		rez[j]=0;
		for(i=0;i<dim;i++)
			rez[j]+=matrice[i][j];
		rez[j]+=temp;
		temp=(int)(rez[j]/10);
		rez[j]%=10;
	}
	for(i=0;i<(2*dim-1);i++) printf("%d",rez[i]);
	printf("\n");
	fclose(pf);
	return 0;
}