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

A=read.csv(paste(args[1], "A.csv", sep=""), header = FALSE, stringsAsFactors=FALSE)
B=read.csv(paste(args[1], "B.csv", sep=""), header = FALSE, stringsAsFactors=FALSE)

A[args[2]:args[3],args[4]:args[5]]=0
A[args[2]:args[3],args[4]:args[5]]=B
write.csv(A, paste(args[6], "AB.csv", sep=""), row.names = FALSE, quote = FALSE)

C=A[args[7]:args[8],args[9]:args[10]]
write.csv(C, paste(args[6], "C.csv", sep=""), row.names = FALSE, quote = FALSE)
