MAXBC
uint8_t[MAXROUNDS+1][4][MAXBC]);
uint8_t W[MAXROUNDS+1][4][MAXBC])
uint8_t W[MAXROUNDS+1][4][MAXBC];
for(i=0; i<MAXBC; i++)
expandedKey[i*4+j] = W[rounds-1][j][i+MAXBC-KC];