Vasya has recently learned to type and log on to the Internet. He immediately entered a chat room and decided to say hello to everybody. Vasya typed the word *s*. It is considered that Vasya managed to say hello if several letters can be deleted from the typed word so that it resulted in the word "hello". For example, if Vasya types the word "ahhellllloou", it will be considered that he said hello, and if he types "hlelo", it will be considered that Vasya got misunderstood and he didn't manage to say hello. Determine whether Vasya managed to say hello by the given word *s*.
The first and only line contains the word *s*, which Vasya typed. This word consisits of small Latin letters, its length is no less that 1 and no more than 100 letters.
def saygello(s):
    bool1=True
    bool2=True
    bool3=True
    bool4=True
    bool5=True
    for i in s:
        if i != "h" and bool1:
            continue
        if i == "h" and bool1:
            bool1= False
            continue
        if i =="h":
            continue
        if i != "e" and bool2:
            return False
        if i == "e" and bool2:
            bool2=False
            continue
        if i == "e":
            continue
        if i != "l" and bool3:
            return False
        if i == "l" and bool3:
            bool3=False
            continue
        if i != "l" and bool4:
            return False
        if i == "l" and bool4:
            bool4=False
            continue
        if i == "l":
            continue
        if i != "o" and bool5:
            return False
        if i == "o" and bool5:
            bool5=False
    return True
			  			 		   	 	 	  	  	  	 		