import sys


def split_line(line):
    spl = line.strip().split('  ')
    cleaned = map(lambda x: x.strip(), (filter(lambda x: x.strip(), spl)))
    return list(cleaned)


def latexify_row(row):
    return ((' & '.join(row)) + r' \\')


lines = sys.stdin.readlines()
table = list(map(split_line, lines))

cols = len(table[0])

### Formatting

print('\\begin{tabular}{' + ('r ' * cols) + '}')

## Head row
print('\t'
      + latexify_row(list(map(lambda x: r'\leftcell{' + x + r'}', table[0]))))

for row in table[1:]:
    print('\t' + latexify_row(row))

print(r'\end{tabular}')