program loop
integer row, col
integer mat(2,2)
integer summ
mat (1, 1) = 1
mat (1, 2) = 2
mat (2, 1) = 3
mat (2, 2) = 4
Do row = 1, 2, 1
Do col = 1, 2, 1
print *, mat(row, col)
End Do
End Do
print *, summ
end program loop
cHJvZ3JhbSBsb29wCiAgICAgIGludGVnZXIgcm93LCBjb2wKICAgICAgaW50ZWdlciBtYXQoMiwyKQogICAgICBpbnRlZ2VyIHN1bW0KICAgICAgbWF0ICgxLCAxKSA9IDEKICAgICAgbWF0ICgxLCAyKSA9IDIKICAgICAgbWF0ICgyLCAxKSA9IDMKCSBtYXQgKDIsIDIpID0gNAoJIAogICAgICBEbyByb3cgPSAxLCAyLCAxCiAJICAgIERvIGNvbCA9IDEsIDIsIDEKIAkgICAgcHJpbnQgKiwgbWF0KHJvdywgY29sKQogCSAgICBFbmQgRG8KICAgICAgRW5kIERvCgogICAgICBwcmludCAqLCBzdW1tCgkgCmVuZCBwcm9ncmFtIGxvb3A=