#include<stdio.h>
int main()
{
    int first_reactant,second_reactant;
    if(scanf("%d",&first_reactant)!=1
     scanf("%d",&second_reactant)!=1)
     {
         printf("Ïnvalid input");
         return 0;
     }
     if(first_reactant<0||second_reactant<0)
     {
         printf("Invalid input");
         return 0;
     }
     int total_mass=first_reactant+second_reactant;
     printf("^%d",total_mass);
     return 0;
}