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Combinatorics Question| Discrete Maths

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Suppose there are 4 cricket matches to be played in 3 grounds. The number of ways the matches can be assigned to the grounds so that each ground gets at least one match is
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Yes you are right beacause

there should each ground gets at least one match is.. so we can’t give any ground 0 team

so only way is 2 1 1 =4c2*2c1*1c1=12

and number of ways we can rotate 2 1 1=3!/2!=3

12*3=36 answer
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