n = input()
c = len(n) - 1
x = int(n[1])
j = 0
if int(n[2]) >= 5:
    x = x + 1
    if x == 10:
        x = 0
        j = 1
z = int(n[0]) + j
if z == 10:
    print(f'1.0*10^{c+1}')
else:
    print(f'{z}.{x}*10^{c}')