/*netpbm.c*/
#include <stdio.h>

int main()
{
	int ch;
	int ch1;


	while((ch=getchar())!=EOF)
	{
		if(ch=='P'){
			putchar('P');
			ch=getchar(); //diavazei ton epomeno xarakthra dld to noumero



			if (ch=='1'){
				printf("Input error!");

			}
			if (ch=='2') {
				putchar('1');
			}

			if(ch=='3') {
				putchar('2');
			}
			if(ch=='4'){
				printf("Input error!");
			}

			if(ch=='5') {
				putchar('4');
		    }

			if(ch=='6') {
				putchar('5');
		    }
			ch1=ch;

		}


		 while(ch ==' ' || ch=='\t' || ch=='\n');   //lefkoi xarakthres
		{
		    ch=getchar();
		    putchar(ch);
		}

		if(ch=='#')              //sxolia
		{
			do{
				ch=getchar();
				putchar(ch);
			} while(ch!='\n');
		}

		while(ch!=' ' && ch!='\t' && ch!='\n');   //platos
		{
			ch=getchar();
			putchar(ch);
		}

		if(ch==' ' || ch=='\t' || ch=='\n')  //leykos xarakthras
		{
		  ch=getchar();
		  putchar(ch);
		}

		while(ch!=' ' && ch!='\t' && ch!='\n'); //height
		{
			ch=getchar();
			putchar(ch);
		}
}