#include<stdio.h>
int main()
{
    int a,b;
    scanf("%d %d",&a,&b);
    switch(a+b){
    case 1:
    printf("one");
    break;
    case 2:
    printf("two");
    break;
    case 3:
    printf("three");
    break;
    case 4:
    printf("four");
    break;
    case 5:
    printf("five");
    break;
    case 6:
    printf("six");
    break;
    case 7:
    printf("seven");
    break;
    case 8:
    printf("eight");
    break;
    case 9:
    printf("nine");
    break;
    default:
    printf("None");
}
    return 0;
}