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args <- commandArgs(TRUE)
options(digits=22)
library("Matrix")

A = matrix(1, nrow=10, ncol=2);
B = matrix(2, nrow=2, ncol=1);
C = matrix(3, nrow=10, ncol=10);
D = matrix(4, nrow=10, ncol=10);
E = matrix(5, nrow=10, ncol=20);
F = matrix(6, nrow=20, ncol=1);

RESULT = t(A %*% B) %*% C %*% D %*% (E %*% F);

writeMM(as(RESULT, "CsparseMatrix"), paste(args[1], "R", sep=""));