2a+2b+2c+2d+2e+2f+2g+2h=19982^a+2^b+2^c+2^d+2^e+2^f+2^g+2^h=19982a+2b+2c+2d+2e+2f+2g+2h=1998,a+b+c+d+f+g+h=?a+b+c+d+f+g+h=?a+b+c+d+f+g+h=?
