#include <stdio.h>

int main()
{
    int number[2]; //number[]={0,0};
    int i, input;
    
    number[0] = number[1] = 0;
    printf("How much to count? ");
    scanf("%d", &input);

    for(i=0;i<input;i++)
    {
        number[1]=number[1]+1; //number[1]++;
        if (number[1]>9)
        {
            number[1]=0;
            number[0]++;
        }
    printf("%d %d\n", number[0], number[1]);
    }
    return (0);
}