#include<stdio.h>
#include<stdlib.h>
#include<string.h>
int main(){
    FILE *fp;
    int c;
    char buff[1000];
    fp=fopen("file1.txt","r");
    while(1){
        if(fgets(buff,1000,fp)==NULL){
            break;
        }
        for(c=(int)strlen(buff);c>=0;c--){
            printf("%c",buff[c]);
        }
    }
    return 0;
}