#include <stdio.h>

int main(void) {
    int a[36]={1,2,3,4,5,6,7,8,9,1,2,3,4,5,6,7,8,9,1,2,3,4,5,6,7,8,9,1,2,3,4,5,6,7,8,9};
    long long int temp=0;
    for(int i=35 ; i >= 0 ; i--) {
        temp = 10*temp+a[i];
        temp %= 1000000007;
    }
    printf("%lld",temp);
	return 0;
}