import sys
fin = sys.stdin
fout = sys.stdout
indent = 8
new_indent = '\t\t'
for line in fin:
is_body = False
spaces = 0
result = ''
for c in line:
if is_body:
result += c
else:
if c == ' ':
if spaces == indent:
result += new_indent
spaces = 0
else:
spaces += 1
elif c == '\t':
spaces = 0
result += new_indent
else:
if spaces >= 4:
sp_cnt = spaces / 4
result += '\t' * sp_cnt
result += ' ' * (spaces - sp_cnt * 4)
result += c
is_body = True
fout.write(result)
fout.write('\n// vim' + ':set ts=4 sw=4 sts=0:\n')