#include <stdio.h>
main()
{
    char a[2000], b[2000];
    int i, j;

    printf("Enter a word. \n");
    gets( a );/* 改行まで文字列の入力 */

    i=0;
    j=0;
    while(a[i] !=0){
         i=i+1;
    }

    b[i]=0;
    j=i-1;
    while(j>=0){
         b[j]=a[i-1-j];
         j=j-1;
    }

    printf("New word is '%s'\n", b);
}