#include <stdio.h>
void main(int argc,char **argv)
{
	int c,word_weights[32],w=0,max_element=0;
	word_weights[w]=0;
	unsigned int l=0;//номер буквы предложения
	while((c=getchar())!='\n')
	{
		if(c!=' ')
		{
			word_weights[w]++;
			l++;
		}
		else
		{
			++w;
			word_weights[w]=0;
		}
	}
	for(c=1;c<=w;c++)
		if(word_weights[c]>word_weights[c-1]) max_element=word_weights[c];
	for(max_element;max_element>=0;max_element--)
	{
		for(int j=w;j>=0;j--)
			{

				printf("\t");
				if(word_weights[j]>(max_element-word_weights[j]))
					printf("I");

			}
		printf("\n");
	}
}
//1.13