def all_Characters_Same(s) :
    
    n = len(s)
    for i in range(1,n) :
        if s[i] != s[0] :
            return False
    return True
def all_Characters_Same(b):
    n = len(b)
    for i in range(1, n):
       
        if b[i] != b[0]:
            return False
    return True