# include
# include
void main () {
int a,x,y;
scanf("%i",&a);
x=a/10;
y=a%10;
If (a>=10&&a<=19)
{switch (a) {
case 11: printf("odinnadcat'");break;
case 12: printf ("dvennadcat'");break;
case 13: printf ("trinnadcat'");break;
case 14: printf ("chetirnadcat'");break;
case 15: printf ("pyatnadcat'");break;
case 16: printf ("shestnadcat'");break;
case 17: printf ("semnadcat'");break;
case 18: printf ("vosemnadcat'");break;
case 19: printf ("devyatnadcat'");break;}}
else
{
switch (x){
case 2:printf("dvadcat'");break;
case 3:printf("tridcat'");break;
case 4:printf("sorok");break;
case 5:printf("pyat'desyat");break;
case 6:printf("shest'desyat");break;
case 7:printf("sem'desyat");break;
case 8:printf("vosem'desyat");break;
case 9:printf("devyanosto");break; }
switch (y) {
case 0:break;
case 1: printf (" odin");break;
case 2: printf (" dva");break;
case 3: printf (" tri");break;
case 4: printf (" chetire");break;
case 5: printf (" pyat'"); break;
case 6: printf (" shest'");break;
case 7: printf(" sem'");break;
case 8: printf(" vosem'");break;
case 9: printf (" devyat'");break;}}
printf(" voron");
if (a>=10&&a<=19) printf("\n");
else
{
switch (y) {
case 1: printf("a");break;
case 4,3,2:printf("i");break;
case 5..9:printf("\n");break;}
}
}