#include <string.h>
#include <stdlib.h>
#include <stdio.h>

#define Max 100

void expansee(char chaine[Max],int number)
{
    if(number>0)
    {
        char * string=(char*)malloc(sizeof(char)*strlen(chaine) * 3);
        int i,counter=0;
        for(i=0;i<strlen(chaine);i++)
        {
            if(chaine[i]=='a')
            {
                string[counter]='b';counter++;  string[counter]='c';  counter++;
            }
            else if(chaine[i]=='b')
            {
                string[counter]='c';counter++;  string[counter]='a';  counter++;
            }
            else if(chaine[i]=='c')
            {
                string[counter]='a';counter++;
            }
            else
            {
                break;
            }
        }
        string[counter]='\0';
        printf("le resultat est : %s \n",string);
        return expansee(string,number-1);
    }
}



int main()
{
    expansee("a",5);
    getchar();
    return 1;
}