char* myreplaceall(char* str, char* suf1, char* suf2) {
	char* res = (char*)malloc(sizeof(char*));
	res[0] = '\0';
	int i = 0; int i2 = 0; int j = 0;
	while (i < strlen(str)) {
		while ((str[i+j] == suf1[0+j]) & (j != strlen(suf1))) j++;
		if (j == strlen(suf1)){
			res = realloc(res, i2 + strlen(suf2));
			for (int k = 0; k < strlen(suf2); k++) res[i2 + k] = suf2[0 + k];
			i = i + strlen(suf1);
			i2 = i2 + strlen(suf2);
		}
		else {
			res = realloc(res, i2 + 1);
			res[i2] = str[i];
			i++; i2++;
		}
		j = 0;
	}
	res[i2] = '\0';
	return res;
}