Crystal Report Print from two tables

Question

Hello Every one,

I want to print form two table, i have marks and attendance two tables.  Year , Admission_number and exam_name   taken composite primary key in marks table. Year , Admission_number and month taken composite primary key in Attendance table.

Here i want to print Students marks and attendance in the single report. I want only two months present days in print report, If i take only one month present days it's working fine, but when i want to get 2 months presents days its giving an error. I need reports like am attaching file .

Please find the attachment .

Thank u.