ssh failing

Hi i am connecting to my ec2 instance and i am getting this error , please help

ssh centos@10.103.1.235 -vvv
OpenSSH_6.6.1, OpenSSL 1.0.1e-fips 11 Feb 2013
debug1: Reading configuration data /root/.ssh/config
debug1: /root/.ssh/config line 1: Applying options for 10.103*
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 56: Applying options for *
debug1: Executing proxy command: exec ssh -A -W 10.103.1.235:22 ec2-user@10.100.140.213
debug1: permanently_set_uid: 0/0
debug3: Incorrect RSA1 identifier
debug3: Could not load “/home/swathi/.ssh/swathikadem.pem” as a RSA1 public key
debug1: identity file /home/swathi/.ssh/swathikadem.pem type -1
debug1: identity file /home/swathi/.ssh/swathikadem.pem-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_6.6.1
debug1: permanently_drop_suid: 0
channel 0: open failed: connect failed: Connection timed out
ssh_exchange_identification: Connection closed by remote host

the key is placed in /home/swathi/.ssh/sathikadem.pem