#include<stdio.h>  
int main()  
{  
    int a,b,i,d,c,j;  
    scanf("%d%d",&a,&b);  
    if(a<=b&&a>=2&&a<=10000&&b<=10000)  
    {  
        for(i=a;i<=b;i++)  
        {  
            d=1;  
            for(j=2;j<i;j++)  
            if(i%j==0)  
            {   
                d=0;  
                break;  
            }  
            if(d==1)  
            printf("%d=%d\n",i,i);  
            else if(d==0)  
            {  
                printf("%d=",i);  
                j=2;  
                c=i;  
                while(1)  
                {  
                    while(c%j==0)  
                    {  
                        printf("%d",j);  
                        c=c/j;  
                        if(c!=1)  
                        printf("*");  
                    }  
                    if(c==1)  
                    {  
                        printf("\n");  
                        break;  
                    }  
                    j++;  
                }  
            }  
        }  
    }  
    return 0;  
}  
/**************************************************************
	Problem: 1838
	User: admin
	Language: C
	Result: Accepted
	Time:274 ms
	Memory:1144 kb
****************************************************************/