#include <stdio.h>

#define QWORD unsigned long long
#define DWORD unsigned long
#define WORD  unsigned short
#define BYTE  char

int put_unit(char * p,int n,char u){
	if(n) return sprintf(p,"%d%c",n,u);
	if(u=='B') return sprintf(p,"B");
	return 0;
}

void conv_byte(char *p,QWORD num){
	int i;
	if(num==0) sprintf(p++,"0");
	for(i=6;i>=0;i--)
		p+=put_unit(p,(num>>(10*i))&0x3ff,"BKMGTPE"[i]);
}

void conv_put(char *buf,QWORD n){
	conv_byte(buf,n);
	printf("%Ld=%s\n",n,buf);	
}
int main(){
	char buf[64];
	
	conv_put(buf,0);
	conv_put(buf,(BYTE)-1);
	conv_put(buf,(WORD)-1);
	conv_put(buf,(DWORD)-1);
	conv_put(buf,(QWORD)-1);
	
	return 0;
}