def fakt1(n):
    vysledek = 1
    for i in range(1, n+1):
        vysledek *= i
    return vysledek

def faktR(n):
    if n == 1:
        return 1
    else:
        return n * faktR(n-1)

print( faktR(4) )  # 24
print( faktR(5) )  # 120
print( faktR(10) )
print( fakt1(1000) )
print( faktR(1000) )



#print( fakt1(4) )  # 24
#print( fakt1(5) )  # 120

"""
elif n == 2:
    return 2
elif n == 3:
    return 6
elif n == 4:
    return 24
elif n == 5:
    return 5*24
elif n == 6:
    return 6 * 120
"""