#include
#include <stdlib.h>
int main()
{
int a,p;
scanf("%02d:%02d",&a,&p);
if(a>12&&a<25)
{
int A=a-12;
printf("%02d:%02d p.m.\n",A,p);
}
else if(a>0&&a<12)
printf("%02d:%02d a.m.\n",a,p);
else if(a==0)
{
a+=12;
printf("%02d:%02d a.m.\n",a,p);
}
else if(a==12)
{
printf("%02d:%02d p.m.\n",a,p);
}
return 0;
}