#include <stdio.h>

int main() {
	char a[202], b[202];

	scanf("%s %s", a, b);

	if ((a[0] == '2' && a[1] == '\0' && b[0] == '2' && b[1] == '\0') ||
		(a[0] == '0' && a[1] == '\0' && b[0] == '0' && b[1] == '\0'))
		printf("E\n");
	else if ((a[0] < '2' && a[1] == '\0') || (b[0] < '2' && b[1] == '\0'))
		printf("S\n");
	else
		printf("P\n");

	return 0;
}