#include<stdio.h>
#include<string.h>

int main(void){
	int x,y,c=0;
	char s[256],t[256];
	scanf("%s%s",s,t);
	x = strcmp(s,"0");
	y = strcmp(t,"0");
	if(!(x) && !(y)){printf("E\n");return 0;}
	x = strcmp(s,"2");
	y = strcmp(t,"2");
	if(!(x) && !(y)){printf("E\n");return 0;}
	x = strcmp(s,"0");
	if(x == 0){c=1;}
	x = strcmp(s,"1");
	if(x == 0){c=1;}
	x = strcmp(t,"0");
	if(x == 0){c=1;}
	x = strcmp(t,"1");
	if(x == 0){c=1;}
	if(c){printf("S\n");return 0;}
	printf("P\n");
	return 0;
}