from random import randint
sequence = [randint(0, 100) for i in range (20)]
print(sequence)

number = int(input( "\n Which number between 0 - 100 should I look for? "))
samler = []
found = False
for position in range(len(sequence)):
        loop = True
        while loop:
            if sequence[position] == number:
                print(number, "is at position", str(position))
                samler.append(position)
                found = True
                loop = False
            else:
                loop = False
if found == True:
    print("\n  Your number(s) is/are in position(s) {}\n ".format(samler))
else:
    print( "\n Your number is not in the set \n")