a,b = map(int,input().split())

if a==0 and b==0:
    print('E')
elif a==1 and b==1:
    print('S')
elif a==2 and b==2:
    print('E')
elif a==0 or b==0:
    print('S')
elif a==1 or b==1:
    print('S')
else:
    print('P')