C1^3*E1^4,
C1^3*E1^2*E2^2,
C1^3*E1^2*E3^2,
C1^3*E1^2*E4^2,
C1*C2^2*E1^2*E2^2,
C1*C2^2*E1*E2*E3*E4,
C1*C3^2*E1^2*E3^2,
C1*C3^2*E1*E2*E3*E4,
C1*C4^2*E1^2*E4^2,
C1*C4^2*E1*E2*E3*E4,
C1*C2^2*E2^4,
C1*C2^2*E2^2*E3^2,
C1*C2^2*E2^2*E4^2,
C2*C3*C4*E1*E2*E3*E4,
C2*C3*C4*E2^2*E3^2,
C2*C3*C4*E2^2*E4^2,
C1*C3^2*E2^2*E3^2,
C1*C3^2*E3^4,
C1*C3^2*E3^2*E4^2,
C2*C3*C4*E3^2*E4^2,
C1*C4^2*E2^2*E4^2,
C1*C4^2*E3^2*E4^2,
C1*C4^2*E4^4