#include <stdio.h>
int main() {
    int a,b,i;
    scanf("%d\n%d\n",&a,&b);
    i=a;
    for(i=a;i<=b;i++){
        if(i<10){
            switch(i){
                case 1:
                   printf("one\n");
                case 2:
                   printf("two\n");
                case 3:
                   printf("three\n");
                case 4:
                   printf("four\n");
                case 5:
                   printf("five\n");
                case 6:
                   printf("six\n");
                case 7:
                   printf("seven\n");
                case 8:
                   printf("eight\n");
                case 9:
                   printf("nine\n");
            }
        }
        else{
            if(i%2==0){
                printf("even\n");
            }else{
                printf("odd\n");
            }
        }
    i++;
    }
    
    
    return 0;
}