static inline int isind(int d) { int dd = 64 - d/4; return icost(dd); }
static inline int icosd(int d) { return icost(d); }
static inline int icosd(int d) { int dd = d/4; return icost(dd); }
static inline int isind(int d) { int dd = 64 - d/4; return icost(dd); }
static inline int icosd(int d) { return icost(d); }
static inline int icosd(int d) { int dd = d/4; return icost(dd); }