A[C,H,O,N] =A[10,11,4,5]+T[10,12,5,2] = A [10+10,11+12,4+5,5+2] = A [20,23,9,7]
G[C,H,O,N] = G[10,11,5,5]+C[ 9,11,4,3] = G [10+ 9,11+11,5+4,5+3] = G [19,22,9,8]
U[C,H,O,N] =U[ 9,10,6,2]+A[10,11,3,5] = U [ 9+10,10+11,6+3,2+5] = U [19,21,9,7]
C[C,H,O,N] =C[ 9,11,5,3] +G[10,11,4,5] = C [ 9+10,11+11,5+4,3+5] = C [19,22,9,8]