1044.c

#include <ctype.h>
#include <stdio.h>
#include <string.h>

char *units[] = {"tret", "jan", "feb", "mar", "apr", "may", "jun", "jly",
	"aug", "sep", "oct", "nov", "dec"};
char *tens[] = {"tam", "hel", "maa", "huh", "tou", "kes", "hei", "elo",
	"syy", "lok", "mer", "jou"};

int Mars2Earth(char *s)
{
	if (s) {
		for (int i = 0; i < 13; i++)         /* units digits */
			if (strcmp(s, units[i]) == 0)
				return i;
		for (int i = 1; i < 13; i++)         /* tens digits */
			if (strcmp(s, tens[i - 1]) == 0)
				return i * 13;
	}
	return 0;
}

int main()
{
	int N, m;
	char line[11];

	fgets(line, 11, stdin);
	sscanf(line, "%d", &N);
	for (int i = 0; i < N; i++) {
		fgets(line, 11, stdin);
		if (isdigit(line[0])) {                /* Earth number */
			sscanf(line, "%d", &m);
			if (m / 13 && m % 13)
				printf("%s %s\n", tens[m / 13 - 1], units[m % 13]);
			if (m / 13 && m % 13 == 0)
				printf("%s\n", tens[m / 13 - 1]);
			if (m / 13 == 0)
				printf("%s\n", units[m % 13]);
		}
		if (isalpha(line[0])) {                /* Mars number */
			m = Mars2Earth(strtok(line, " \n"));        /* higher digit */
			m += Mars2Earth(strtok(NULL, " \n"));       /* lower digit */
			printf("%d\n", m);
		}
	}

	return 0;
}