http://paiza.jp/poh/ec-campaign/result/c2fb77b572ea2d4ebf082f09d1bf2fcf

CPoh.c

#ifdef _MSC_VER
#define IO_H "io.h"
#define _CRT_NONSTDC_NO_WARNINGS
#define __attribute__(X)
#else
#define IO_H "unistd.h"
#define __pragma(X)
#define __declspec(X)
#define __fastcall
#endif
#include IO_H

__pragma(code_seg(".text")) __declspec(allocate(".text")) const char calculate[] __attribute__((section(".text#")))  = {
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};

#define VALUE_LENGTH (2 + 500000 + 300)

int main() {
	static char buffer[VALUE_LENGTH * 7] = {0};
	static char prices[1000001] = {0};
	read(0, buffer, VALUE_LENGTH * 7);
	int length = (*(int(__fastcall  __attribute__((fastcall)) *)(char *, char *))calculate)(buffer, prices);
	write(1, buffer, length);
	return 0;
}