def remove_Char(s,c) :
      
    counts = s.count(c) 
    s = list(s) 
    while counts :  
        s.remove(c) 
        counts -= 1 
    s = '' . join(s)   
    return (s) 
def is_not_prime(n):
    import math
    
    result = False
    for i in range(2,int(math.sqrt(n)) + 1):
        if n % i == 0:
            result = True
    return result