>>160
#include <stdio.h>
int main(void)
{
    int n = 0;
    FILE *fp;
    if ((fp = fopen("count.txt", "r+")) == NULL)
        return 1;
    fscanf(fp, "%d", &n);
    rewind(fp);
    fprintf(fp, "%d\n", ++n);
    fclose(fp);
    return 0;
}