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args <- commandArgs(TRUE)
library("Matrix")
library("matrixStats")

X = readMM(paste(args[1], "X.mtx", sep=""));
Y = X + 2;
Z = X + 3;

R = as.matrix(sum(X+Y+Z));

writeMM(as(R,"CsparseMatrix"), paste(args[2], "R", sep=""));