#include <stdio.h>

int main()
{
	int c2 = 0;
	int spaces = 0;
	while (1)
	{
		int c;
		c = getchar();
		if (c == -1) break;
		if (c == 0xC2)
		{
			c2 = 1;
		}
		else if (c2 == 1 && c == 0xA0)
		{
			++spaces;
			c2 = 0;
		}
		else
		{
			while (spaces > 0)
			{
				putchar(' ');
				spaces -= 2;
			}
			putchar(c);
			c2 = 0;
		}
	}
}