#include#include#includeint main(){char c;int i,a,b;FILE *fp;scanf("%d%d",&a,&b);fp=fopen("0.txt","w");srand(time(0));for(i=0;ifprintf(fp,"%c\n",'a'+rand()%26);for(i=0;ifprintf(fp,"%c\n",'0'+rand()%10);fclose(fp);return 0; }
