#include<stdio.h>
void printBinarySquarepattern(int n, int m, int num) {
    for (int i=0 ;i <n; i++) {
        for  (int j=0 ;j <m; j++) {
            printf("%d",num);
        }
    printf("\n");
    }
}

    int main (){
    int n,m, num;
    scanf("%d", &n);
    scanf("%d", &m);
    scanf("%d", &num);
    if (num = 0 && num !=1) {
        printf("Invalid input\n");
        return 1;
    }
    printBinarySquarepattern(n,m,num);
    return  0;
}
int main(){
    int n,m,num;
    scanf("%d %d %d", &n, &m,&num);
    if(num!=3)
    if(n<=0|| (num !=0 && num !=1))
    {
        printf("Invalid input");
        return 0;
    }
    for(int i = 0; i< n;i++) 
    {
        for(int j =0; j< m;j++) 
        {
            printf("%d",num =0);
        }
        printf("\n");
    }
    return 0;
}