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Cod sursa(job #347333)
#include <cstdio>
#define file_in "oras.in"
#define file_out "oras.out"
int N,i,j;
int main()
{
freopen(file_in,"r",stdin);
freopen(file_out,"w",stdout);
scanf("%d", &N);
if (N==4)
{
printf("-1");
fclose(stdin);
fclose(stdout);
return 0;
}
//printf("01");
for (i=1;i<N;++i) printf("0");
printf("1");
printf("\n");
for (i=2;i<N;++i)
{
printf("1");
for (j=2;j<=N;++j) printf("0");
printf("\n");
}
for (i=1;i<N-1;++i) printf("0");
printf("10");
fclose(stdin);
fclose(stdout);
return 0;
}