int main(){ int a, b; scanf("%d %d", &a, &b); print(a, b); return 0; }

void print(int a, int b){ for(int i = a; i <= b; i++){ if(1<=i && i<=9){ switch(i){ case 1: printf("one\n"); break; case 2: printf("two\n"); break; case 3: printf("three\n"); break; case 4: printf("four\n"); break; case 5: printf("five\n"); break; case 6: printf("six\n"); break; case 7: printf("seven\n"); break; case 8: printf("eight\n"); break; default: printf("nine\n"); } } else if(i % 2 == 0){ printf("even\n"); } else{ printf("odd\n"); } } }