#include<stdio.h>
#include<string.o>
int main(){
    char str[]="C programming";
    int len,i;
    
    len=strlen(str);
    printf("Original string: %s\n",str);
    printf("Reversed string:");
    
    for(i=len;i>=0;i--){
        printf()
    }
    
    return o;
}