HELOLOLLO.c

#include <stdio.h>

#define _C(c)   c
#define C_C(c)  _C(c)
#define DOOOO
#define DDDOOOO(DD) DOOOO
#define OOODDDD(OD) OD
#define ODODODOD(_ODD) _ODD
#define C__(c)  C_C(_C(c))
#define CCCCOOOOOOO(C___) DDDOOOO(C___)
#define CCC(CC_,_CC) C__(CC_) C_C(_CC)
#define C_CC(CCCC, _CCC)        CCC(CCCC,_CCC)
#define C_CC_CC(CCC_CC) C_CC(C_C(CCC_CC),"World\n")
#define C_CCCC(_C_) C_CC_CC(_C_)
#define CC_CC_(_C_C) C_CCCC(_C_C)
#define CCOCCO(OCOC) CC_CC_(OCOC)
#define COCOCC(OC) OC(CCOCCO("Hello, "))
#define COOCOO(OOC) COCOCC(OOC)
#define OOOCOO(OOO) COOCOO(OOO)
#define DDDDDDDDODD CCCCOOOOOOO()
#define OOOOOOOOOOO OOOCOO(printf)
#define DDDDoDDDODD DDDDDDDDODD 
#define DDDDDDDoODD DDDDDDDDODD 
#define ODDDDDDoDOD DDDDDDDoODD 
#define OOOOOODODOO ODODODOD(main)
#define DDOODODODDD ODDDDDDoDOD
#define ODOODODODDD DDOODODODDD 
#define ODDODODDO  OOODDDD(void)
#define OoOODODODDD DDOODODODDD 
#define OoOOooDODDD DDOODODODDD 
#define OOOOOODOD OOODDDD({)
#define OoOODODooOO DDOODODODDD 
#define DODOODODD OOODDDD(;)
#define DDDDoDDDODo DDDDDDDDODD 
#define HEOLOLOLLLO DDDDDDDoODD 
#define oDDDDDDoODD DDDDDDDDODD 
#define ODoDDDDoDOD DDDDDDDoODD 
#define OoOOOOOOO OOODDDD(})
#define DDODoDDDODo DDDDDDDDODD 
#define oDoDDDDoODD DDODoDDDODo 
#define ODoDoDDoDOD DDDDDDDoODD 
ODDODODDO OOOOOODODOO (ODDODODDO)
#define DDDDoDDDODo DDDDDDDDODD 
#define oDDDDDDoODD DDDDDDDDODD 
#define ODoDDDDoDOD DDDDDDDoODD 
OOOOOODOD OOOOOOOOOOO DODOODODD OoOOOOOOO 
#define DDDDoDDDODo DDDDDDDDODD 
#define oDDDDDDoODD DDDDDDDDODD 
#define ODoDDDDoDOD DDDDDDDoODD 

HEOLOLOLLLO