#include <stdio.h>
#include <stdlib.h>

int main(int argc, char **argv) {

	int hour, min;

	while( (scanf("%d.%d", &hour, &min)) != EOF ){

		if( hour == 0 )
			printf("12.%.2dam\n", min);
		else if( hour >0 && hour <12 )
			printf("%d.%.2dam\n", hour, min);
		else if( hour == 12 )
			printf("%d.%.2dpm\n", hour, min);
		else
			printf("%d.%.2dpm\n", hour-12, min);

	}

	return EXIT_SUCCESS;
}