9
7
2
5
3

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2222^{5555}+4^{5555}+5555^{2222}-4^{2222}-4^{5555}+4^{2222}

(2222^{5555} +4^{5555} is divisible by 2226 and so by 7)(5555^{2222} -4^{2222} is divisible by 5551 and so by 7)= -4^{2222}(4^{3333}-1) =4^{2222}(64^{1111}-1^{1111})(64^{1111}-1 is divisible by 63 therefore by7)[SO THE WHOLE NUMBER IS DIVISIBLE BY 7]