#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>

int main(){
        int in;
        char data[26157313];
        char y[1];
        in=open("pink.dump",O_RDONLY);
        for (int x=0;x<26157312;x++){
                read(in,y,1);
                data[x]=y[0];
        }
        close(in);
        int out=open("pink.back",O_CREAT|O_WRONLY|O_TRUNC);
        for(int x=26157312;x>0;x--){
                y[1]=0;
                y[0]=data[x];
                write(out,y,1);
        }
        close(out);
        return 0;
}